Two workers and the contractor were killed at the scene while another worker was badly injured. The oil tanker driver was also killed because his truck also crashed into the rear of a six-wheel truck of the contractor.
The oil tanker driver was identified as Pongrit Boonra. Ratchasak Charoenkulchaiyaporn, 35, the contractor, was killed along with his two workers - Chokchai Khiewaram and an unidentified one. Another worker, Suriya Akkachart was injured.