At least seven people were killed and 15 others injured when a passenger bus collided with a trailer on Tuesday morning near Bhalwal Tehsil of Sargodha, in Eastern Pakistan, Pakistan’s (Dunya News) reported.According to sources, the bus carrying 45 passengers was heading towards Bhera from Rajanpur when it collided with a trailer near Ajnala station in Bhalwal. As a result of collision, seven persons were killed while 15 others sustained injuries.Rescue teams arrived at the scene and shifted the injured to District Headquarter Hospital in Sargodha