A rescue call for two passengers who were reported missing from a P&O ferry sparked a huge emergency operation last night.
Coastguard teams sprang into action after it was thought two people had gone overboard.
The passenger vessel was sailing between Larne and Cairnryan when the alarm was raised.
Lifeboats, helicopters, and a rescue plane were deployed and teams searched the water for six hours.
They have since concluded nobody is in distress and stood down all operations in the water.
K9 Search & Rescue NI said: “We were requested to assist in a search for two possible missing people, from a passenger ferry operating between Larne and Cairnryan.
“We assisted Coastguard Rescue Teams from Portmuck, Bangor and Larne.
“As well as RNLI Larne lifeboat.
“Coastguard Rescue Teams from Stranraer, Portpatrick and Ballantrae along with Portpatrick and Stranraer RNLI lifeboats searched the Scottish side.
“A coastguard helicopter and aeroplane was also involved in the search.
“After a search of over six hours and investigations by police on both sides, it’s not believed anyone is in distress.”
More to follow…