Russian President Vladimir Putin on Tuesday called the loss of 14 navy officers in a submersible fire a "big loss," ordering a full investigation into what happened.

"It is a big loss for the navy, and for the army as a whole," Putin told Defence Minister Sergei Shoigu, ordering him to "find the reasons for this tragedy".

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)