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Marine police helped rescue sailors whose boat lost power in the Blackwater Estuary.

The yacht was in danger of grounding onto a leeward shore when its engine cut out on Sunday.

Two officers from the Essex Counter Terrorism Marine Unit, who were at Tollesbury Marina, answered a call put out by the Thames Coastguard.

After checking the crew’s welfare, they towed it to Bradwell Marina.

Det Sgt Vaughn High, who supervises the unit, said: "The maritime community was pleased to observe police activity on the water and it was fortunate that they were patrolling with a fast response vessel.

“The unit would always respond to any search and rescue incident where there could be an immediate threat to life.”