New Delhi, June 1 -- Russian investigators are probing the explosions which caused two bridges to collapse and derailed two trains in western Russia overnight, as 'acts of terrorism'.

Officials did not mention what caused the blasts. In one of the incidents, seven people were killed and dozens were injured.

The first bridge, in the Bryansk region on the border with Ukraine, collapsed on top of a passenger train on Saturday, causing the casualties.

Hours later, officials said a second train was derailed when the bridge beneath it collapsed in the nearby Kursk region, which also borders Ukraine.

(This is a developing story. Keep checking for more updates)

Published by HT Digital Content Services with permission from MINT....