Kenyan security forces help people escape after a bomb blast at DusitD2 hotel in Nairobi on Jan. 15. A huge blast followed by a gun battle rocked the upmarfket hotel and office complex, killing at least 21 in an attack claimed by the al-Qaeda-linked al-Shabaab Islamist group. KABIR DHANJI/AFP/Getty Images
A Week in World Photos
Protests in Britain, animal blessings in Spain, and attacks in Kenya, Afghanistan, and Colombia.