At least 19 people have been killed and dozens more wounded in a shooting at a college in Russian-annexed Crimea.
An 18-year-old student ran through the technical college in Kerch firing at fellow pupils before killing himself, Russian investigators say.
Officials and witnesses have also spoken of at least one blast caused by an unidentified explosive device.
Russia seized Crimea from Ukraine in 2014 in a move condemned by many Western powers.
The annexation followed a disputed referendum and marked the start of a simmering conflict involving Russian-backed rebels in eastern Ukraine that goes on to this day.
What happened at the college?
Investigators at first released a statement saying an explosive device filled with “metal objects” had detonated in the dining area and some witnesses maintain they heard one or more blasts.
The alleged perpetrator, named Vladislav Roslyakov, is said to have run from room to room as he fired, starting in the canteen. He then shot himself dead, Russia’s investigative committee said.
Officials said initial examinations suggested all the victims died of gunshot wounds, but some reports speak of shrapnel injuries.
BBC Russian has been speaking to witnesses, including Igor Zakharevsky, who was in the canteen when the gunman struck.
“I was at the epicentre of the first explosion, at the entrance, near the buffet,” he said.
“I was in complete shock and one of my classmates started pulling me away. Then I heard several shots at intervals of two or three seconds. After a while there was another explosion.”
National guard soldiers were deployed and schools and pre-schools in the city were evacuated.
A businessman near the college described hearing an explosion and seeing a large window shatter. (BBC)