Four people have been arrested for allegedly vandalising the office of the Prahar Janshakti Party (PJP) in Malwani here and assaulting a party worker, police said on Tuesday.

According to the police, the attack was a result of an old rivalry and was not politically motivated. The police have arrested Kabir Mulla, Sadik Sheikh, Faisal Qureshi and Afzal Qureshi, and are on the lookout for two more accused who vandalised the office and assaulted party worker Irfan Sheikh on Monday evening, an official said.