lifeboat

Of the 1,065 people on board, 30 died when two lifeboats were pulled into the ship's propellers.

The UK Coastguard sent a Border Force vessel, two lifeboats and a helicopter to the scene – and issued a mayday call to other shipping in the area.

"The work we are doing, and zoos around Europe are doing, is really to be that lifeboat, to be that ark population."

But on seeing the lifeboat, many of those in the water decide to swim directly to it, and they are hauled on board.

Aerial footage from a police helicopter showed rescuers diving into the water to pull swimmers to the safety of a lifeboat.