A Doordarshan crew was moving with a security patrol for a story when they were ambushed in Aranpur area, Deputy Inspector General of Police P. Sundar Raj told the media here.

"Two police personnel died on the spot while a cameraman suffered grievous injuries and later succumbed to his injuries," he added.

The slain police personnel were identified as Mangal Ram and Rudra Pratap Singh. The cameraman who was killed was Achyutanand Sahu.

The attack came ahead of the Chhattisgarh Assembly elections. Maoists have asked people to boycott the polls.