Questioning the central forces' version of firing on voters in self-defence in Cooch Behar that killed four people, West Bengal Chief Minister Mamata Banerjee on Saturday said her government will initiate a CID probe into the incident.

A CID probe will be initiated to find out the circumstances behind the incident," the CM said. Four people were killed as central forces opened fire allegedly after coming under attack from locals, who "attempted to snatch their rifles", police said.