Russia says 4 perpetrators of concert hall attack detained while heading to Ukraine

By Elena Teslova

MOSCOW (AA) - The Russian Investigative Committee said on Saturday that four perpetrators of Friday's Moscow region concert hall attack were detained in the border region of Bryansk while heading to Ukraine.

Separately, the Federal Security Service (FSB) said it learned that a handler was waiting for the group on the Ukrainian side of the border to facilitate the passage and provide cover.

"Trying to escape, the terrorists were heading towards the Russian-Ukrainian border, planned to cross out and had contacts on the Ukrainian side," it said in a statement.

Earlier, the Russian authorities said a main highway leading to Ukraine was closed, and other important roads were being thoroughly monitored.

Assailants stormed the Crocus City concert hall in Moscow region on Friday and opened fire, killing 93 people, injuring more than 145 others and setting fire to the venue.