Three police personnel, including an assistant sub-inspector, were injured when a mob attacked a police outpost in Katwa on Wednesday morning, triggering tension in the area.
Dilip Nayek, a police constable has been admitted to Katwa sub-divisional hospital as his injury was serious.
A gang of around 20 people stormed into Kadra police outpost demanding the release of some of their associates who, they claim, were arrested without sufficient evidence against them.
They were staging a demonstration inside the police outpost, creating a chaos. When the police personnel asked them to leave the place, the mob pounced on them.
A scuffle eventually broke out between the police and the gang members.
It was learnt that the police on Monday had arrested two persons from Kojlasha village for their alleged involvement in storing crude bombs at a place.
When the news of the arrest of the two reached their associates, they reached the police station and demanded their release claiming the two were innocent.
The ASI was attacked by the mob when he tried to placate them.
On seeing their superior being overpowered by the violent crowd, two police constables Dilip Nayek and Samar Nath Pal rushed to his rescue and in turn received injuries.
It was alleged that the main accused, who instigated the mob, walked away free from the police outpost and police were unable to arrest him.
Senior police officers in the district later lodged a complaint in the police station against those who led the attack at the police station.
Police have started a raid to nab the culprits, but are yet to arrest anybody in this connection so far.