Nay Aung, 26, repeatedly hit the face and body of 51-year-old Ko Ko Maung, the Straits Times reported.

He had first been attacked by Maung with a martial arts weapon, the high court heard.

Maung had earlier been involved in a row with Aung's brother on two supply ships berthed alongside each other in the Jurong River.

The victim died at the scene from fractures and internal injuries.

Aung