Fresh incidents of stone-throwing by unidentified people on police personnel, deployed in Howrah’s Kazipara area, which witnessed violence over the Ram Navami procession on Thursday, triggered tension in the area on Friday afternoon, a cop said.

The police had to use batons to disperse a group of people who had gathered. Prohibitory orders under Section 144 of CrPC were imposed in Kazipara area, the senior IPS officer said. Altogether 45 people were arrested in connection with the violence since Thursday.