The spokesperson said: “Following a temporary mechanical issue, the European Causeway is now continuing on its scheduled journey to the Port of Larne under its own propulsion, with local tugs on standby, where it will discharge its passengers and cargo as planned.

“There are no reported injuries on board and all the relevant authorities have been informed.

“Once in dock a full independent investigation will be undertaken.”

A RNLI spokesperson said that three lifeboats had been sent to the scene.

The spokesperson said: “Three RNLI lifeboats were requested to launch this afternoon to assist a passenger ferry in difficulty one mile south-east of The Maidens.

“Larne RNLI’s all-weather lifeboat launched at 2.17pm while Red Bay’s RNLI’s all-weather lifeboat launched at 2.35pm followed by the inshore lifeboat at 3pm.

“All lifeboats are currently on scene.”