MOSCOW, October 17. /TASS/. An explosion rocked a technical college in Kerch, in the east of Crimea, on Wednesday, leaving over a dozen dead and scores of others injured, a source in the local emergency services told TASS.

"The blast occurred this afternoon. There are deaths and injuries. Emergency services are heading to the accident scene," the source said.

The explosion occurred on the grounds of the educational institution, where several bangs were heard.

A source in the local law enforcement agencies said the blast left some people dead and "scores of those injured."

Doctors, rescuers, firefighters and police are working at the scene. Ambulances rushed to the scene and from there delivered the victims to a city hospital.

Based on preliminary information, a gas cylinder has exploded in the Kerch college, a law enforcement source told TASS.

"According to preliminary information, a gas cylinder has exploded," the source said.