Raipur, Aug 11 - At least six heavily armed Maoist guerrillas were killed Tuesday after a 20-hour gun battle with security forces in Dantewada district of Chhattisgarh, police said.

Police and paramilitary teams from Dantewada and Bijapur districts shot dead the six rebels in Kirandul area of Dantewada, 400 km south of capital Raipur.

'We basically hit a Maoist camp, our heavily armed policemen assisted by Central Reserve Police Force (CRPF) put the militants under heavy fire throughout Monday and early morning Tuesday. We finally killed six militants and recovered their arms,' Superintendent of Police (Dantewada) Amresh Mishra told IANS.