HEFEI -- Five people were killed and four others were injured after 23 vehicles piled up on an expressway in eastern China's Anhui province early Sunday morning.

The pileup occurred at around 5:12 am on the Anqing section of the Yuexi-Wuhan Expressway linking the southwest part of Anhui province with Wuhan, capital of Central China's Hubei province, according to the traffic police from the city of Anqing.

Four people were killed on the spot while one died at the hospital. The four injured people are in stable condition.

The traffic on the expressway has resumed. An investigation into the cause of the accident is underway.

The province has witnessed snowy and rainy weather on Saturday.