Chinese authorities arrested a man and his girlfriend in the death of an elderly woman he knocked down while driving drunk and whose body was later found buried at a construction site. Police say the woman likely was alive when buried.

The official Xinhua News Agency reported Thursday the couple was intoxicated and returning home from a bar in the eastern city of Cixi on April 30 when the man ran over the 68-year-old woman.

Xinhua cites a witness as saying the couple carried the woman into their car saying they would take her to a hospital. Instead, they allegedly buried her to avoid responsibility for the accident.

One report cites the man as saying the woman had stopped breathing. But Xinhua says police believe she was still alive.