Three persons were killed on Friday when their car hit a divider and then another vehicle on the outskirts of Hyderabad city, police said.The overspeeding car overturned and hit the divider before colliding with a DCM mobile van on the Outer Ring Road. The victims were identified as Ravi Teja (27), Surya Teja (27) and Rohith (28). Another passenger in the car Kiran, who sustained grievous injuries, is said to be in critical condition, the police added.This incident follows the death of the 22-year-old son of a cabinet minister of Andhra Pradesh and his friend in an accident in Hyderabad on May 10.