Three youths in Barnala district, Punjab, succumbed to injuries after the motorcycle they were travelling on collided with a tractor-trolley at Boparai Kalan on the Raikot-Mullanpur highway late Saturday. One of the victims, Parvinder Singh, succumbed to his injuries at the accident site, while the other two, identified as Amritpal Singh and Akashdeep Singh, died during treatment.