Teenager Suhairi Suhani clinched Singapore's second medal in athletics at the 2015 Asean Para Games with a surprise silver in the men's long jump F20 final on Tuesday.

The 18-year-old's personal best mark of 6.66m was 0.01m better off than Fadli Amirullah's jump, forcing the Indonesian to settle for the bronze.

Gold went to Abdul Latif Romly of Malaysia in a new Asian record of 7.43m.

Suhairi, who is intellectually impaired, is competing at his second APG, and won a silver and bronze in track events at the 2015 Special Olympics World Summer Games.

"I want to thank all my supporters, especially my mum. I'm very proud to represent Singapore."

On Sunday, Zac Leow bagged a silver in the men's 1500m T37 event to end Singapore's four-year wait for a track and field medal at the biennial Games.