At least 15 passengers were killed and 40 others were injured when a chartered bus packed with students and teachers on a school field trip hit a 18-wheel truck in Prachin Buri province.
The accident occurred at about 5am today as two chartered buses were taking 98 students and 16 teachers from Ban Dong Lop School in Nakhon Ratchasima to Pattaya resort in Chon Buri province.
When the double-decker buses arrived at Prachinburi's Na Di district the road was winding and steep. Investigators think that the bus driver lost control of his brakes and crashed into a pickup truck in front of the bus.
The driver tried to turn the bus away but hit an 18-wheel truck and left the road, crashing into a deep ravine before a large tree stopped the vehicle from plunging a further 200 metres down the hillside.
It was earlier reported that 11 passengers died at the scene while the rest were announced dead at hospital.