Twenty-three Russian soldiers have been crushed to death by rubble after their military barracks collapsed in Siberia.
Four floors collapsed in one section of the building in the Siberian city of Omsk on Sunday evening (local time) as 42 Russian paratroopers were resting.
"All 42 soldiers under the rubble have been found. Twenty-three of them are dead," said defence ministry spokesman Igor Konashenkov.
President Vladimir Putin has been informed of the accident in Omsk, about 2200km east of Moscow, a Kremlin spokesman said.
In footage shown on Russian television, soldiers formed a human chain to pass bricks and other debris from one to another in order to clear the rubble.
"Half of the heap has been cleared now," acting commander Nikolai Ignatov said in televised remarks.
Teams of rescue workers, search dogs and a plane with medical equipment from Moscow have been dispatched to the scene, along with military prosecutors.
Some of the injured victims have been airlifted for treatment in Moscow.
A representative of the regional military investigators told Interfax news agency a probe had been launched into possible negligence.
According to a list published by Life News website, most of the victims were male and aged between 18 and 24.
About 50 relatives of the injured or dead soldiers have already arrived in Omsk.
According to the defence ministry, the 242nd training centre trains junior officers and armoured infantry vehicle drivers, among others.