CHAKWAL  - At least six people were killed when a truck overturned at Motorway near Chakwal district of Pakistan's Punjab province, officials said on Wednesday.The Motorway police said that the incident took place at Salt Range when the truck overturned due to over speeding. They added that the victims were moving toward Jhang city from Khairabad. "The bodies of the victims have been shifted to District Headquarter Hospital in Chakwal," officials said.