Phuong looked at the small inflatable boat and wondered whether she should step in. There were 70 people packed in, and it was sitting low in the water. She recalls the fear, exhaustion and desperation on their faces. There weren't enough lifejackets to go around.

But Phuong was desperate. She says she had been stuck in France for two months, after travelling there from Vietnam via Hungary, sleeping in tents in a scrubby forest.

Already she had refused to travel on one boat because it seemed dangerously overcrowded, and previously had been turned back in the middle of the Channel three times by bad weather or engine failure.

Her sister, Hien, lives in London, and recalls that Phuong used to phone her from France in tears. "She was torn between fear and a drive to keep going.