Four persons were injured and three shops were set on fire following a group clash in the main market here today, police sources said.
An altercation between a studio shop owner and customer over making a photograph led to clash between two groups, Superintendent of Police of Palamu Narendra Kumar Singh.
After the clash three shops belonging to a particular community were set on fire, police said.
A mob then blocked Aurangabad-Medininagar Road for four hour demanding immediate action against the culprits.
Para-military forces and additional police forces have been deployed in the area to maintain law and order as tension prevails in Harihargunj area of Palamu district, the SP said.
Additional Superintendent of Police, P Murugan was camping on the spot to ensure law and order.
