On 12 January 2010, Haiti suffered a devastating earthquake of magnitude 7.0 with a death toll estimated by the Haitian government at over 300,000, and by non-Haitian sources from 50,000 to 220,000. Aftershocks followed, including one of magnitude 5.9. The capital city, Port-au-Prince, was effectively leveled. A million Haitians were left homeless, and hundreds of thousands starved. The earthquake caused massive devastation with most buildings crumbled, including Haiti's presidential palace. The enormous death toll made it necessary to bury the dead in mass graves. Most bodies were unidentified and few pictures were taken, making it impossible for families to identify their loved ones. The spread of disease was a major secondary disaster. Many survivors were treated for injuries in emergency makeshift hospitals, but many more died of gangrene, malnutrition, and infectious diseases.