A German-registered Spanish fishing vessel is being escorted into West Cork by the Naval Service after it was detained off the southwest coast earlier this week.
The vessel is the fourth detention to have been recorded by the Naval Service this year.
The Naval Service ship LÉ Samuel Beckett inspected the fishing vessel during routine patrols and detained it on February 7th.
It is expected to reach port at the weekend, where it will be handed over to the Garda Siochána.
Last month, a separate German-registered Spanish vessel was detained by the LÉ George Bernard Shaw.
At a court sitting, the skipper of the Pesorsa Dos was charged with 12 offences relating to alleged illegal fishing activities in Irish waters on various dates in January this year.