Indonesia's navy says it fired shots at a Chinese trawler when it refused to stop fishing in Indonesian waters, and then seized the vessel and its eight crewmembers.

Navy spokesman Maj. Budi Amin said Monday that an Indonesian frigate intercepted the trawler on Friday near the Natuna islands in Indonesia's exclusive economic zone.

He said the frigate fired shots which hit the stern of the Chinese vessel after it ignored repeated warnings to stop. He said no one was injured.

Tensions flared in March when Indonesia intercepted a Chinese fishing vessel off the Natuna islands. A Chinese coast guard vessel collided with the trawler as it was being towed, allowing it to escape.

Indonesia has taken strong actions in the past year against illegal fishing, destroying dozens of captured vessels.