Singer Manaswin "Tik Shiro" Nuntasane’s van reportedly hit a motorcycle carrying three siblings in Bangkok's Sai Mai district early Thursday morning, resulting in the death of one sibling.
Police were told of the accident on a bridge on Sukhaphiban 5 Road, above Thepharak Road, around 4am. Officers found the body of 28-year-old Thianporn Siwapornpitak at the scene.
On the ground about 10 metres under the bridge, police discovered Thianporn's 21-year-old brother Chakkapak, who was seriously injured and was rushed to hospital.
Their sister Jinnipa, 24, was unharmed. She told police that they were riding the motorcycle when she dropped a water bottle. As her brother stopped to retrieve it, the Hyundai van struck her sister and brother still on the motorcycle, causing Mr Chakkapak to be thrown off the bridge.
The van was driven by artist Tik Shiro, 63, who apologised to the victims' family. He stayed at the scene to cooperate with police.
Police said that a breathalyser was not given to Tik Shiro immediately at the crash scene due to chest pain that prevented him from blowing into the device.
A doctor conducted an alcohol test on the singer's blood sample, and results are expected within three days.
The father of the victims said that his son was in a coma with a fractured skull and broken neck. A doctor's assessment indicated a survival probability of just 10%.