Three persons were hurt when four bike-borne assailants opened fire at a person in Bagbera area of the city. Vijay Kumar Singh alias Monu, 47, was supervising the construction of his house when the attacks happened. The cause of the attack is being probed. CCTV footage is being examined to identify the assailants. All three injured individuals are undergoing treatment at Tata Main Hospital (TMH) and are out of danger.