A bomb attack on two security vehicle killed 10 police and injured three early Friday, a police officer said, hours after insurgents shot dead five state policemen in a raid on an armed forces camp. Both the attacks were carried out in forested areas of the mineral rich region.

"It was a massive blast," Ram Niwas, additional director general of police (Maoist operation), told Reuters. The anti-landmine vehicle was tossed up in the air by the blast before it landed in pieces, Niwas said. The attack took place 400 km from the state capital, Raipur.