Three Iranian men are being questioned by immigration officials after they were rescued off the coast of East Sussex.
The trio were picked up by the Border Force cutter HMC Seeker near Hastings yesterday morning after their small boat got into trouble.
Lifeboat crews said the alert came after the dinghy started to leak.
The Hastings lifeboat and Kent-based coastguard helicopter were initially sent, followed by the cutter.
The men were brought back to the Port of Dover.
They are being held two weeks after 18 Albanians had to be rescued from an inflatable boat after it sank off the Kent coast, prompting immigration union officials to warn Britain's coast faces one of its greatest ever breaches from small boats and dinghies carrying migrants.