A meteorite has flared spectacularly in the sky and exploded over the Russian region of Chelyabinsk, reportedly injuring around 400 people. (Scroll down for videoX
Interior Ministry spokesman Vadim Kolesnikov said 102 people had called for medical assistance following the incident, mostly for treatment of injuries from glass broken by the explosions.
Kolsenikov also said about 600 square meters (6,000 square feet) of a roof at a zinc factory had collapsed.
Reports conflicted on what exactly happened in the clear skies. A ministry spokeswoman, Elena Smirnikh, was quoted by the Interfax news agency as saying it was a single meteorite.
The sounds of car alarms and breaking windows could be heard in the area, the witness said, and mobile phones were working intermittently.
"Preliminary indications are that it was a meteorite rain," an emergency official told RIA-Novosti. "We have information about a blast at 10,000-metre (32,800-ft) altitude. It is being verified.
"No fatalities were reported but President Vladimir Putin, who was due to host Finance Ministry officials from the Group of 20 nations in Moscow, and Prime Minister Dmitry Medvedev were quickly informed.
Amateur video broadcast on Russian television showed an object speeding across the sky about 9:20 am local time (0320 GMT), leaving a thick white contrail and an intense flash.