A group of activists of Awami League (AL) allegedly vandalized the office of Bangladesh Nationalist Party (BNP) following upcoming municipality poll in Jamalpur.The incident took place at Aramnagar Bazaar of Sarishabari upazila in the district at 9am on Saturday. Awami League activists also set fire at six motorcycles and vandalized a few shop creating panic among the people.Confirming the matter Officer-in-charge of Sarishabari Police Station Billal Hosen said additional police personnel deployed on the spot to control untoward situation.