Rescue workers and journalists take cover outside Mehran naval aviation base as a firefight continues between Pakistani security forces and militants who attacked the base in Karachi on May 23. The Pakistani Taliban claimed responsibility for the brazen attack on the base by 15-20 gunmen, saying it was to avenge the killing of Al-Qaeda leader Osama bin Laden on May 2.
Photo by Athar Hussain for Reuters
Yandex founder and CEO Arkady Volozh (center) celebrates as Yandex is listed on the Nasdaq exchange during their IPO at the Nasdaq market site in New York on May 24.
Photo by Mike Segar for Reuters
U.S. President Barack Obama drinks a Guinness beer as he meets with local residents at Ollie Hayes pub in Moneygall, Ireland, the ancestral homeland of his great-great-great grandfather, on May 23.
Photo by Charles Dharapak for AP
Former Ukrainian Interior Minister Yuriy Lutsenko seen in a defendant's cage as former Ukrainian Prime Minister Yulia Tymoshenko stands at right in a courtroom in Kyiv on May 23. Tymoshenko's top ally was detained in late December on charges of abuse of office.
Photo by Sergei Chuzavkov for AP
Ratko Mladic enters a court in Belgrade on May 26. Mladic, the ruthless Bosnian Serb military leader charged with orchestrating Europe's worst massacre of civilians since World War II, was arrested before dawn at a relative's home in a tiny Serbian village after a 16-year hunt.
Photo by AP
Pakistani Nazeeran Zafar, 38, adjusts her head scarf while working in a brick factory with her son Mohammad on the outskirts of Islamabad.
Photo by Muhammed Muheisen for AP
Silhouette of a convicted man, Mahdi Faraji, is seen while he is being hanged in the city of Qazvin, 130 kilometers west of the Iranian capital, Tehran, on May 26. Iran's official news agency reported that five prisoners were hanged in public, including a convicted serial killer. The others had been found guilty of rape and armed robbery. This brought the number of executions to 130 since the beginning of the year.
Photo by Hamideh Shafieeha for AP/Mehr
A boy looks at power lines outside a window of a building built in the British Raj era during a power outage in Karachi on May 27.