A large chunk of a meteor that exploded over Russia is found in a lake on Friday, February 15. REUTERS/Chelyabinsk region Interior Ministry/Handout
A meteor streaks through the sky before exploding with a flash and boom that shattered glass in buildings and left hundreds of people hurt. OLEG KARGOPOLOV/AFP/Getty Images
Workers repair a damaged power line near the wall of a local zinc plant. About 270 buildings were damaged -- mostly broken glass -- by shock waves caused by the blast, said Vladimir Stepanov of the National Center for Emergency Situations at the Russian Interior Ministry. OLEG KARGOPOLOV/AFP/Getty Images
The meteor leaves a white streak through the sky. The national space agency, Roscosmos, said scientists believed one meteoroid had entered the atmosphere, where it burned and disintegrated into fragments, according to RIA Novosti. VYACHESLAV NIKULIN/EPA//LANDOV
The meteor's vapor trail passes over the city. VYACHESLAV NIKULIN/EPA/LANDOV
A man removes shards of glass from the frame of a broken window. Andrei Kuzmin/reuters/landov
The meteor damaged windows at a sports hall. STRINGER/REUTERS/LANDOV
By noon Russia time more than 725 people had sought medical help. Andrei Kuzmin/reuters/landov