In the second brazen attack in as many days, Naxals on Friday blew up an anti-landmine vehicle, killing 10 security personnel in Chhattisgarh's Dantewada district.

The vehicle was approaching a bridge near Gatan village when the Naxals triggered a powerful blast and opened indiscriminate fire on the security forces, police said.

Seven Special Police Officers (SPO) and three police jawans were killed when their vehicle was tossed in the air by the powerful blast, they said. Three of the injured have been rushed to a hospital in Bastar.

On Thursday, the Naxals opened indiscriminate fire near the camp of the Chhattisgarh Armed Force in Naraynpur district, killing four jawans and injuring another.

Giving details of Friday's incident, senior police officials said two police vehicles from the police headquarters were on their way to the Katikalyan area when they were ambushed. The police force retaliated following which the Naxals fled.