In this task, you are given news articles and you need to generate a highlight, i.e., a short summary, with a maximum length of 10 lines.

(CNN) -- A high-speed passenger train left its tracks on the outskirts of Split, Croatia, Friday, killing at least six people and injuring 45, according to Croatian police. The high-speed train derailed on the outskirts of Split, Croatia, about noon on Friday. The train was on its way from the Croatian capital, Zagreb, when it derailed about 20 kilometers (12 miles) from it's destination of Split about noon, said Marina Kraljevic-Gudelj, a spokeswoman for police in Split. "This is a huge tragedy, so there is no place for speculation," she said. Police had launched an investigation into the cause of the crash. CNN's Per Nyberg contributed to this report.
High-speed passenger train leaves its tracks on the outskirts of Split, Croatia .
At least six people killed and 45 injured, according to police .
The train was on its way from the Croatian capital, Zagreb, to Split .

It was a shocking and gruesome discovery: three dead infants found in a Massachusetts home so squalid that police officers had to search it in hazmat suits. Now, days later, as investigators continue to search through what the Worcester County District Attorney's Office describes as the home's "deplorable conditions (such as) massive insect infestation, mounds of used diapers and feces," a picture is beginning to emerge of the family that lived inside. And it's a picture so deranged, so unfathomable to a reasonable mind, that even a lawyer for the accused calls the situation "completely inexplicable." Erika Murray was arraigned September 12 on a bevy of charges stemming from the discovery of the dead infants at her home the day before, but she has not been charged in their deaths. The 31-year-old pleaded not guilty to charges of concealing an out of wedlock fetal death, two counts of permitting substantial injury to a child, intimidation of a witness, cruelty to an animal and violating an abuse prevention order, according to Tim Connolly, a district attorney spokesman. Whether or not Murray is the mother is not known by authorities for certain at this point, but her attorney assumes that she is. "My expectation is that it will be confirmed that they were indeed hers," Keith Halpern told CNN. Murray lived in the now-condemned single family home with her longtime boyfriend, Ray Rivera, and the couple's children. Just how many children lived with them in the vermin-infested 1,150-square-foot home, however, depends on which parent you ask: of the four living children that the state removed from the home on August 28, Murray told investigators that Rivera, 38, only knew about two of them. The other two -- a 3 year old and an infant, according to Halpern -- were apparently not only born in secret but lived hidden from their father amid mountains of garbage under the same roof. Rivera also "presumably" did not know about the ones that had died, at least according to the account Murray has told authorities, Halpern said. "It is a mystery to me how Mr. Rivera could have failed to notice (the) numerous pregnancies (of) the woman with whom he shared a bed," said Halpern. "It's a mystery to me how he could have failed to realize that there were two children living under the same roof as him, and he didn't know about it." CNN was unable to reach Rivera or members of his family Sunday evening. He has not been charged with any crime, and there is no public record of physical abuse. 'Prisoner of her own fear' Halpern said that while his client's explanation "is not based in reality," the situation  Murray came to be in was the result of fear, not malice. "She was terrified of the pregnancies being discovered," said Halpern. "She was terrified of the two younger children being discovered. Why? I don't know the answer to that." Whether based in reality or not, Halpern said Murray was "a prisoner of her own fear" and suggested it was that fear that explains the three infants found dead in her home. "Try to imagine the state of mind of a woman who attempts to hide a pregnancy,  go into labor and deliver children -- at least twice, but presumably five times -- on her own." "I feel certain that she did not do anything to harm any of these children," he said. "I don't think there will be a determination that they were killed." Though Halpern said he has yet to consult with a pathologist, he said it is not clear if they were ever alive to begin with or if they were all stillborn. Abuse suspected in 2007 . The state's removal of the four living children at the home last month was the result of the filing of what's called a 51A report in Massachusetts, according to Alec Loftus, a spokesman for the state's office of Health and Human Services. A 51A can be filed by any citizen with reason to believe that a child has been abused or neglected. This was not the first time a 51A had been filed when it came to that home, according to a Massachusetts Department of Children and Families spokeswoman. Cayenne Isaksen said such a report was previously received in 2007, but that "it was unsupported and therefore no case was opened." For now, Isaksen said DCF has Murray's four children in its care and is focused on  "ensuring (their) safety and well-being and providing them with the proper medical care, support and services they need," she said. Connolly said that the family caring for them has no public statement to make at this time. Murray's case was adjourned to October 14. Investigators, meanwhile, remain at the scene digging through the squalor. "Our investigation will continue for quite some time," said Joseph Early, the Worcester County District Attorney. Dad accused of slaying five kids had history with social services .
Lawyer says squalor concealed children from father for years .
Lawyer for the woman arrested says she is the mother .
Three infants were discovered dead in squalid Massachusetts home .
Police had to search the house in hazmat suits .

(CNN) -- The president of Guinea-Bissau was assassinated Monday morning, a day after an explosion killed the head of the West African country's military, the prime minister said. Circumstances of Joao Bernardo Vieira's death are unclear. It was not immediately clear how President Joao Bernardo Vieira, 69, died. Prime Minister Carlos Gomes confirmed the death to CNN. Early Monday, gunfire and rocket explosions that lasted for about an hour were heard near the presidential palace in the capital, Bissau, according to local media. Looting was later reported at the presidential palace. Army spokesman Zamora Induta said an aide to the president was killed during the gunfire. He added that the gunmen remained at-large and that a 10-member-commission will manage the army until a new chief of staff is named. The army, he said, will remain neutral. Gen. Tagme Na Waie, chief of Guinea-Bissau's military, was killed in a bomb explosion in his office Sunday, according to local news reports. Five other high-ranking military officials were wounded, two of them critically. After the attack, all local radio stations were ordered to immediately suspend their programs. The United Nations said U.N. Secretary-General Ban Ki-moon expressed dismay over the killings. "The secretary-general strongly condemns these violent acts, which have occurred soon after successful legislative elections which paved the way for enhanced U.N. support to the country's peace-building efforts," the statement said. "The secretary-general calls urgently for calm and restraint, and urges the national authorities of Guinea-Bissau to fully investigate these assassinations and bring to justice those responsible for them." The British government issued a statement advising against "all but essential travel" to the country. Na Waie's predecessor also was assassinated. Soldiers shot and killed Gen. Verissimo Correia Seabra in October 2004. Guinea-Bissau, a former Portuguese colony, has a history of military coups. Monday's development is the latest violence over four months as the army and Guinea-Bissau's president have clashed.  See location map of Guinea-Bissau » . The tiny west African country, located between Guinea and Senegal, has a population of 1.5 million and is considered one of the five poorest countries in the world, according to the CIA Factbook. The country has been in a near-constant state of political upheaval since independence from Portugal in 1974. In 1980, Vieira became president after a military coup. He was accused of purging political rivals and suppressing dissent, but several coup attempts throughout the 1980s and early 1990s failed to unseat him. In 1994, the country held its first free elections, and Vieira was elected president. He held the post for five years, until a military mutiny ousted him, and the country plunged into civil war. Successor Kumba Yala took office in 2000. He also was unseated in a military coup after three years. Yala's ouster paved the way for Vieira to run for office again. In 2005, he was re-elected president, pledging to pursue economic development and national reconciliation. CNN's Umaro Djau contributed to this report.

NEW: U.N. appeals for calm and restraint after assassination of president .
Not immediately clear how President Joao Bernardo Vieira died .
Death comes day after head of military killed .
West African country in a near-constant state of political upheaval since 1974 .