The freight train struck the bus at a congested railway crossing in the Thai capital on Saturday afternoon, igniting the vehicle and leaving 30 people injured, according to emergency authorities. Police later revised down an earlier injury toll of 35.

Local police chief Urumporn Koondejsumrit said the train driver, who was also injured in the collision, and a railway-crossing guard had both been charged with negligence causing injury and death. The two denied the allegations, he said.

Urumporn said a preliminary urine test detected illicit substances in the driver’s system, although authorities did not specify the drugs involved. Additional testing would also be conducted on another driver and a technician aboard the train, he added.

The collision has intensified scrutiny over railway safety and traffic management at level crossings in Thailand, where congestion and infrastructure bottlenecks remain persistent concerns in urban areas.

Video footage circulated on social media appeared to show the train approaching the crossing at moderate speed before crashing into the bus, which was stranded on the tracks amid heavy traffic.

Bangkok police commissioner Siam Boonsom said investigators were examining surveillance footage and operational procedures at the crossing to determine whether railway staff acted negligently.

“We see the official holding the red flag which means the track was not safe but we also see that the train did not stop or slow down, causing the crash,” Siam told reporters on Sunday.

He said authorities had reviewed footage from previous days showing vehicles halted on the tracks while crossing officials used red flags to warn approaching trains to stop until traffic cleared.

Investigators are also examining the train’s speed and braking distance at the time of impact, Siam said.
Emergency services said 17 injured passengers remained hospitalized as of Sunday evening.

The crash occurred near the Airport Rail Link’s Makkasan station when the container freight train struck the bus after it became trapped on the tracks at a red light, according to Deputy Transport Minister Siripong Angkasakulkiat.

Preliminary findings indicated the bus had stopped on the crossing, preventing the rail barriers from closing before the train approached, Siripong told reporters.
“The train was unable to stop in time to avoid colliding with the bus,” he said, adding that all eight fatalities were passengers aboard the bus.

Emergency crews and firefighters rushed to the scene as flames spread through the bus and nearby vehicles on Asok-Din Daeng Road. Rescue workers pulled injured passengers from the wreckage while fire crews battled the blaze with water hoses.

Videos circulating on social media showed the train striking the bus and dragging multiple vehicles along the tracks before the fire erupted.

A witness, motorcycle taxi driver Wanthong Kokpho, told Reuters the bus had been immobilized by traffic at the crossing.

“The bus was stuck at a red light, so it couldn’t move,” he said. “The fire broke out immediately.”

Officials said the fire was later brought under control as emergency teams continued cooling operations and searched the site for additional victims.
Authorities have launched an investigation into the cause of the collision.

Thailand has one of the world’s highest road fatality rates, according to the World Health Organization, with safety experts frequently citing weak enforcement of traffic and transport regulations.