A bus drove off a pier near the town of Taman in Southern Russia on Friday after its brakes failed, killing 16 people, Russian State media reported.

Divers searching for missing passengers

The bus was taking workers to a construction site for local oil and gas company Tamanneftegas when it fell into the Black Sea.

About 20 people managed to survive.

Russian federal investigators have opened a criminal case into possible safety and transport violations.