The killing of RSS worker Dhanu Pradhan by un-identified extremists had triggered tension in the riot-hit Kandhamal district once again.

A mob of 2000 tribals gheraoed the Brahmanigaon police station and demanded immediate arrest of the culprits.

All shops and business establishments at Brahmanigaon  and villages near it remained closed.

Meanwhile the district administration has enforced prohibitory orders under section 144 CrPc in the local area as a pre-cautionary measure.

"We don't rule out escalation of violence in view of the murder," Director General of Police Manmohan Praharaj said.

Meanwhile, Orissa police sent additional forces to Kandhamal. SP of the district is camping at Brahmanigaon where the incident took place.