A helicopter and lifeboats have been dispatched to a search operation after a boat overturned off Larne.
HM Coastguard received a report of “an overturned catamaran” at around 4.20pm on Monday.
It dispatched a helicopter from Prestwick, Scotland.
RNLI lifeboats from Red Bay and Larne were also tasked with responding and were at the scene on Monday evening.
Both P&O Ferries vessels on the Larne-Cairnryan route assisted with a search and rescue operation.
They were later released by the Belfast Coastguard to return to their respective ports.