A landmine exploded today at Bankisole in West Midnapore district as security forces combed 43 villages on the second day of the three-day bandh called by People's Committee against Police Atrocities (PCPA), a tribal organisation.
No casualty was reported in the blast.
The landmine went off at a jungle in Bankisole, which together with Dharampore and Kadasole areas, all within a proximity of around 2-4 km from Lalgarh, were combed for Maoists, police said.
Meanwhile, hundreds of PCPA supporters and students were lathi-charged at Gohumidanga High School near Dharampur when they held a demonstration to protest the institute being used as a camp by the security forces.
Around 16 people were injured in the lathicharge, the sources said.
The PCPA has called the shutdown in tribal areas of West Midnapore, Bankura and Purulia districts to protest the alleged atrocities by security forces during their anti-Maoist operation since June 19 in West Midnapore.
The bandh was peaceful, but transport services were hit in many areas.
Many have quit the CPI-M in areas like Lalgrah, Ramgarh, Manikpara, Belpharai and Goaltore allegedly under the Maoists' pressure.