SINGAPORE, Oct. 18 -- A man has been left distraught after learning that his mother was allegedly dragged 1.5km in a hit-and-run that ended on the Pan-Island Expressway (PIE).

"It's one thing to be involved in a car accident, but my mum was dragged so far after being hit," the man surnamed Huang told Shin Min Daily News.

"My mum was in a very bad state, she was trapped under the vehicle. She must've suffered a lot of pain and felt helpless."

The 77-year-old woman died following a hit-and-run accident along PIE towards Changi Airport on Friday morning.

A minibus driver, 66, fled the scene but was later arrested for driving without due care and attention causing death.

According to Shin Min, the woman was hit by a minibus at the inters...