Tensions over fishing rights around the British territory of Gibraltar have been raised, following an incident involving Gibraltarian police boats and British Royal Navy, and Spanish police.
It comes after several days of dispute in which Spanish police escorted Spanish fishing boats near the area.
The Gibraltar government says fishing with large nets there is illegal because of an environmental law.
Spain claims sovereignty over Gibraltar, a British colony since 1713.
Several Royal Gibraltar Police boats surrounded three Spanish fishing vessels on Wednesday night after they cast their nets near Gibraltar harbour, media reports say.
