SINGAPORE - Every time he had a day off, Bangladeshi construction worker AKM Shafiul Hasan (Shuvo) spent the entire time wandering up and down MRT trains, searching for young women to molest.

Shafiul , 26, had admitted to molesting three women between April and September this year. A fourth offence, committed when he was out on court bail for the earlier offences, was taken into account.

On Wednesday, he was jailed for 14 months.

The court heard that on April 3, he had boarded the train at City Hall MRT station and sat next to a 21-year-old student and touched her breast. She quickly got up from her seat and walked to the next cabin, and later reported the incident to the SMRT staff.

A month later, he got on at Admiralty station and this time, molested a 23-year-old communications assistant.

She got up to report him but he was gone when she returned.

But his luck ran out on Sept 1 when he touched a 33-year-old personal assistant's chest.

She shouted for help and one of the commuters hit the emergency communications button and called SMRT staff.

Shafiul was detained when the train stopped at Khatib station.

He could have been jailed for up to two years, fined and caned for each charge.