Four persons have died and 16 were injured in traffic accident here. According to private TV channel a passenger bus was departing from Rawalpindi to Gujranwala when it hit a oil tanker near Wazirabad on Thursday. Accident occurred due to oil tanker driver negligence as he took a wrong turn and hit the bus after the accident driver of the tanker fled away from the scene. Four people died on the spot and 16 were injured. The injured persons have been shifted to District Headquarter hospital Gujranwala while four injured are said to be in serious condition.