Question: What London based news agency reported on Encuentro por Guatemala?

Context paragraphs:
Wafa: Wafa (Arabic: وفا, acronym of وكالة الأنباء الفلسطينية, meaning 'Palestine News Agency'‎ ‎ ), also known as the Palestine News Agency and the Palestinian News & Info Agency, is the news agency of the Palestinian National Authority, and was "the P.L.O.'s news agency" in the years before the formation of the PA.

Reunification of Gran Colombia: Reunification of Gran Colombia refers to the potential future reunification of Colombia, Venezuela, Ecuador, and Panama under a single government.  There have been attempts of reunification since 1903, when Panama separated from Colombia.  People in favor for a reunification are called ""unionistas"" or unionists.  In 2008, The Bolivarian News Agency reported that the then-president of Venezuela, Hugo Chávez, announced the proposal of the political restoration of the Gran Colombia, under the Bolivarian revolution.

Reuters: Reuters is an international news agency headquartered in London, England.  It is a division of Thomson Reuters.

Children's Express: Children’s Express was a news agency reported and edited by children and teenagers between the ages of 8 and 18.

KosovaLive: KosovaLive was founded in 2000 at the time when there was a growing need for an independent news agency that would be serving the flourishing media scene in Kosovo.  Initially established as a non-governmental organization, it came to light with the initiative and support of the Organization for Security and Co-operation in Europe (OSCE), and start-up grant provided by a consortium of donors, among which Swiss Foreign Ministry, OSI, United States Agency for International Development (USAID) through IREX, German Foreign Ministry and Press Now, just to mention the most prominent ones.  For years, the internet based news agency KosovaLive served as the main source of information for most of the leading daily newspapers and broadcasters, as well as local and international governmental and non-governmental institutions/organizations working in Kosovo.  In its second years of existence, turned into a subscription only internet based news agency, while continuing to be one of the most trusted and most widely used independent news sources.KosovaLive today is a much larger organization than at its start.  KosovaLive NGO, which continues its media related activities within its non-governmental organization mandate, has given birth to KosovaLive Media Group, which in turn houses two entities.  The first being Kosovalive 360, which is increasing its status of one of the Kosovo's most reliable news portals, and SociaLive, which provides ever increasing up to date advertising and social media markeeting.

Ghana News Agency: The Ghana News Agency (GNA) is the official news agency of the country of Ghana.  It was founded in 1957 by Kwame Nkrumah as part of a "network of coercive and partisan institutions," in a concerted effort to present a more favorable view of the country to the outside world and to control the flow of information nationally. " The New York Times" reported in 1964 that most of the agency's news came from Reuters (it had "only a few correspondents abroad"); the agency functioned as a gatekeeper in that it disseminated international news to the Ghanaian press, and deleted any international news critical of the Ghanaian leadership immediately, thus preventing such news from reaching the country's newspapers and radio stations.  Until the rise of the Pan African News Agency, the GNA was considered one of the most efficient news agencies in Africa, spreading what Nkrumah called the "clear ideology of the African Revolution" and contributing to "African and Ghanaian emancipation."

Kiringul: Kiringul (Korean: 기린굴; "Kirin's Grotto") is a cave in North Korea said to have been the home of the "kirin", a mythological chimeric beast that was reputedly ridden by King Dongmyeong of Goguryeo in the 1st century BC.  In November 2012 the state-owned Korean Central News Agency reported that the site had been discovered in Moran Hill near the North Korean capital, Pyongyang.  The North Korean government claims that the discovery proves that Pyongyang is the historic capital of Korea.  Analysts outside North Korea have put the announcement in the context of long-running North Korean attempts to link the country's regime with the ancient Korean kings, and so position it as the legitimate heir to the legacy of Goguryeo.

Lusa News Agency: The Lusa News Agency (Portuguese: "Lusa – Agência de Notícias de Portugal, SA" ), literally "Lusa - Portuguese News Agency", is the largest Portuguese news agency, incorporated on 28 November 1986.  under the name of "Agência Lusa — Cooperativa de Interesse Público de Responsabilidade Limitada" ("Lusa Agency - Public Interest Cooperative with Limited Liability") or simply "Lusa - CIPRL", following the extinction of the earlier Portuguese news agency "ANOP Agência Noticiosa Portuguesa" ("Portuguese Newsy Agency").  Lusa is a member of, and participates in, the "Agência Europeia de Fotografia" ("EPA European Pressphoto Agency").

Encuentro por Guatemala: – a Spanish name variously translated as "Encounter for Guatemala" (for example, by the BBC and CNN), or as "Together for Guatemala" (Reuters) –

2010 Aksu bombing: The 2010 Aksu bombing was a bombing in Aksu, Xinjiang, People's Republic of China that resulted in at least seven deaths and fourteen injuries when an Uyghur man detonated explosives in a crowd of police and paramilitary guards at about 10:30 on 19 August, using a three-wheeled vehicle.  The assailant targeted police officers in the area, and most of the victims were also Uyghurs.  Xinhua news agency reported that 6 people were involved in the attack, and 2 had died; the other four were detained by police.

Supporting paragraphs: Encuentro por Guatemala Reuters
Answer: Reuters