SINGAPORE - A naval diver punched a taxi driver as he was unhappy about paying extra to clean up the taxi after one of his friends vomited in the vehicle.

On Monday (March 5), Johnny Seah You Tian, 26, was jailed for four weeks for punching Mr Tan Buck Chai, 43, in the face at Hougang Avenue 7 on May 28 last year.

Deputy Public Prosecutor Tang Shangjun said Mr Tan picked up Seah and two others, Mr Shawn Tay and one Tracy, at around 5.05am that day at the Clarke Quay taxi stand.

Mr Tan was directed to Block 345, Hougang Avenue 7, to drop off Tracy. Along the way, she vomited.

When the taxi arrived at the block, Mr Tan collected $23 for the fare.He also asked for $80 to clean up the vomit in his taxi.

A dispute arose over the cleaning fee. After some negotiation, Mr Tan reduced it to $60, which Mr Tay paid.

Seah was unhappy about the additional fee, and punched the cabby in the face. The three passengers then walked away.

Mr Tan sought medical treatment at Tan Tock Seng Hospital and was given three days' medical leave.

He later received $124 in compensation from Seah.

Seah could have been jailed for up to two years and/or fined up to $5,000 for voluntarily causing hurt.