Police said the couple’s Daihatsu car was riddled with M16 bullets in the attack that happened on a bridge of the Yab-Yarang road in Tambon Pulohpuyoh at 5:50 am.
Police said Suibi Chuchuaykham, 69, and his wife, Nuansri, 62, were riding their car to sell port at a morning market in Khok Pho when they were ambushed by four assailants.
The assailants also stole their cash and a pistol, police said.
Police said the two were once attacked two years ago on the a spot that was two kilometres away from the latest location of attack.