A 45-year old man and his teenage son were killed in a road crash on Pirganj-Thakurgaon road in Pirganj upazila of Thakurgaon district Saturday. . The deceased were identified as Karimul Islam, of Bhakura Bagmara village under Sadar union of Pirganj upazila and his son Arman Hossain, 14. Witnesses said whn Karimul and Arman were coming to Pirganj from Thakurgaon on a motorcycle it collided with a Thakurgaon-bound pickup van at  Chilachapa around 7:45 pm, leaving  Karimul dead on the spot. READ: 4 bikers killed in road crashes in Mymensingh, Rajshahi Seriously injured Arman Hossain was taken to Pirganj Hospital where  doctors  declared him dead. Pirganj Police Station Officer-in-Charge Jahangir Alam said the pickup van driver was arrested and the vehicle seized. READ: 2 dead, 4 injured in Brahmanbaria road crash