Three persons died and 32 were injured when the bus they were travelling in collided head on with a tractor along the Maynaguri-Malbazar stretch of NH31 in Jalpaiguri district on Thursday night.

The injured are under treatment at different hospitals. Police have seized both the vehicles.

Sources said a group of residents from Kathalbari village in Domohoni 1 panchayat of Maynaguri block had been to Maulani of the same block to attend a marriage party.

While returning, the bus rammed into a tractor that was carrying potatoes and turned its side at Lakkhirhat around 11pm.

Local people and Maynaguri police took the injured passengers to the block hospital.

Three persons were declared brought-dead at the hospital and they were Abu Taleb, 41, Sabina Khatun, 40, and Mohammad Nazrul, 50.

Some the injured persons were shifted to the super-specialty hospital in Jalpaiguri and later at night, three of them were sent to North Bengal Medical College and Hospital in Siliguri.

The investigators said they suspected over-speeding might had led to the accident.