At least 30 people were injured today when police and security forces baton charged and tear gassed Maoist-backed People's Committee against Police Atrocities (PCPA) supporters who attacked them at Jhargram town in West Midnapore district.

The PCPA supporters attacked the joint forces with stones and 'tangis' (spears), after taking out a procession to Jhargram  town in violation of prohibitory orders, the police said.

At least 30 people were injured in police action, they said.

Forty PCPA supporters were detained, they said. Maoists also fired on security personnel at Kolaboni, near Jhargram and at Lakshmanpur near Salboni and at Dharampur near Lalgarh. No casualty was reported, the police said.