India, April 15 -- The Maoists fired Barrel Grenade Launcher (BGL) shells on a camp of security forces in Bijapur district in Chhattisgarh during the wee hours of Monday, four days ahead of polling for the Lok Sabha in the Bastar region.

Police said that no injuries were reported and a search operation in the area is underway.

On Monday, the Maoists called for a bandh in five states falling under Dandakaranya Special Zonal Committee of CPI (Maoists), which include Chhattisgarh, Odisha, Telangana, Andhra Pradesh and Maharashtra, protesting against an encounter in which, they claimed, villagers including their cadres were killed on April 1.

People familiar with the matter said that the bandh was successful in some areas of Bijapur, Sukma...