Five people were killed and three others injured in a pileup involving a car and three trucks on a highway in Jieshou County of east China's Anhui Province, according to the provincial emergency management department on Friday.Four people died on site when the accident happened at about 1:50 a.m. Another person died later despite emergency treatment. The three injured people are being treated in a local hospital and are now in stable condition.Investigation into the cause of the accident is underway.Five people were killed and three others injured in a pileup involving a car and three trucks on a highway in Jieshou County of east China's Anhui Province, according to the provincial emergency management department on Friday.Four people died on site when the accident happened at about 1:50 a.m. Another person died later despite emergency treatment. The three injured people are being treated in a local hospital and are now in stable condition.Investigation into the cause of the accident is underway.