An air and sea search is under way for a diver who has been reported missing off the coast of Hastings.
The Hastings lifeboat is at the scene with a coastguard helicopter and aircraft.
The alert was raised at 13:25 BST, a spokesman for the lifeboat charity the RNLI said.
Coastguards said that vessels in the area were also searching for the missing person.
A Maritime and Coastguard Agency spokeswoman said: "A search for a missing diver, involving Hastings RNLI inshore lifeboat, a coastguard helicopter and a coastguard fixed wing aircraft, as well as vessels in the area, is currently ongoing off Hastings."