Iran aired television footage on Friday of another British sailor "confessing" to trespassing in its waters, escalating a dispute over Tehran's seizure of 15 navy personnel, as the EU deplored Tehran's action.

EU foreign ministers at a meeting in Germany deplored the seizure of the Britons as a breach of international law and threatened to take measures if they were not released soon.

Television grab of Nathan Thomas Summers speaking on Iranian television March 30, 2007. Iranian television broadcast footage of three of 15 captured British sailors and marines on Friday and said one had confessed to entering Iranian waters illegally and had apologised to the Iranian people. [Reuters/Al Alam Television]