A diver prepares for an underwater exercise during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

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A diver practice the evacuation exercise from a sunken submarine during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

16.01.2020#6134316

A diver waits before an exercise that simulates the delivery of equipment to a sunken submarine during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

16.01.2020#6134307

A diver practice an exercise that simulates the delivery of equipment to a sunken submarine during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

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A diver practice the evacuation exercise from a sunken submarine during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

16.01.2020#6134293

Servicemen prepare a diver for an exercise that simulates the delivery of equipment to a sunken submarine during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

16.01.2020#6134286

A serviceman prepares a diver for an exercise that simulates the delivery of equipment to a sunken submarine during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

16.01.2020#6134283

A diver practice the evacuation exercise from a sunken submarine during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

16.01.2020#6134273

A serviceman prepares a diver for an exercise that simulates the delivery of equipment to a sunken submarine during diving drills at the rescue and underwater technologies research institute, in Lomonosov, Russia.

16.01.2020#6134263