Six people have died after a boat carrying migrants sank in the English Channel.
A joint rescue operation by the British and French coastguards have rescued more than 50 others, authorities said.
The RNLI said a lifeboat crew was launched just before 04:00 BST.
A volunteer, who was on one of the rescue boats, told Reuters news agency migrants were using shoes to bale water out of the sinking boat.
Anne Thorel said there had been "too many" people on the boat.
The UK Home Office has been asked for more details about the incident while Home Secretary Suella Braverman is expected to chair a meeting this morning.
Another small boat also got into difficulty but all on board have been rescued, the UK Coastguard said.