Underway is an investigation following an incident between a UK Royal Navy warship and a Killybegs-registered trawler off the Donegal coast.

An Air Corps maritime patrol aircraft, reports DerryNow, was dispatched and two Irish Naval Service ships placed on standby after the skipper of the Killybegs-based fishing vessel, the Marliona, reported that a UK frigate ordered him to leave the area where he was fishing 60 miles off the Irish coast.

It is understood that HMS Lancaster hailed the fishing vessel on Tuesday morning, informing the skipper they were commencing a joint operation with a submarine which would continue over the next three days.

A maritime aircraft was sent to monitor the area where the UK warship was operating and two Irish naval vessels were redeployed.

More details on the naval-fishing incident by clicking here.