Taiwanese prosecutors on Friday for the first time charged a Chinese ship captain with intentionally damaging undersea cables off the island in February, after a rise in sea cable malfunctions alarmed Taiwan officials amid tensions with China.

Prosecutors say the man was captain of the Chinese-crewed Hong Tai 58, registered in Togo, which Taiwanese authorities detained after suspecting the ship had dropped anchor near an undersea cable off southwestern Taiwan, damaging it.

The prosecutors' office in the southern Taiwanese city of Tainan said they had charged the ship's Chinese captain, whom they identified only by his family name, Wang, with being responsible for damaging the cable.