A police officer was killed in a collision between two motorbikes in Sadar upazila of the district on Thursday noon. The deceased was identified as Nurul Islam, a sub-inspector of district  Special Branch of police and hailed from Sirajganj district. AKM Alamgir Jahan, officer-in-charge of Chapainawabganj Model Police Station, said the accident occurred around 1pm when the two vehicles collided head-on in Islampur area, leaving the motorcyclists critically injured. Read more: Cop killed in Naogaon road crash They were rushed to Sadar Hospital where SI Nurul was declared dead upon arrival, he added.