Three youths were killed after their bike hit a tree at the Dimirikuda Chhak on the Redhakhol-Naktideul road under Redhakhol police station in Sambalpur district on Tuesday.The deceased were identified as Tuna Samal(31), Harihara Raul(30) and Amiya Dhala(32). The bodies have been sent for autopsy, police said.