The unauthorised use of mobile phones by Russian soldiers led to the deadly Ukrainian rocket attack in Makiivka on January 1, Moscow’s military says, raising the death toll to 89.

Russia’s defence ministry has blamed the unauthorised use of mobile phones by its soldiers for a deadly Ukrainian missile attack that it said killed 89 servicemen

The Russian defence ministry said four Ukrainian missiles hit a temporary Russian barracks in a vocational college in Makiivka

Makiivka is the twin city of the Russian-occupied regional capital of Donetsk in eastern Ukraine where the misslies hit

Although an official probe has been launched, the main reason for the attack was clearly the illegal mass use of mobile phones by servicemen, the ministry said.

“This factor allowed the enemy to track and determine the coordinates of the soldiers’ location for a missile strike,” it said in a statement issued just after 1am (22:00 GMT Tuesday) on Wednesday.