The women were identified as Xam, 48, and Xiam, 22, who appeared to be about five to six months pregnant. They succumbed to their injuries in hospital. 
Their motorcycle was hit by a bike driven by Thirachai Laocharoen, 23, who along with his pillion rider Jirapat Wongpanya, was severely injured. 
Witnesses told police they saw the women stop at the intersection, waiting to make a turn, when suddenly they decided to make the turn and were hit by the other motorcycle that was speeding toward them from the opposite side. 
Police will interrogate the survivors to determine who should be held responsible for the accident before taking legal actions.

Cambodian mother, pregnant daughter killed in Chon Buri motorcycle crash

A Cambodian mother and her pregnant daughter sustained fatal injuries when their motorbike was hit by another as they were making a right turn at an intersection in Chon Buri’s Si Racha district late on Tuesday night.