The Naval Service vessel LE Samuel Beckett detained two British-registered factory trawlers for alleged breaches of fisheries legislation today.

The trawlers were detained in a joint operation with the Sea Fisheries Protection Agency, 30 miles west of the Blasket Islands. The trawlers were fishing for pelagic species, such as mackerel.

LE Samuel Beckett is the Naval Service's newest ship and the trawlers are among the biggest vessels boarded by the Naval Service over the past year, each being 55 metres long.

Both trawlers are being escorted to Cobh, Co Cork and are due to arrive Thursday evening.

LE Samuel Beckett was commissioned for service in May 2014.