INDEPENDENCE, Mo. (AP) — Police say two people were struck and killed on Interstate 70 in Independence.

The pedestrians were hit by more than one car, including an Independence police car, early Thursday.

Independence police say on the department’s Facebook page that it is unclear why the two victims were walking on the interstate. The accident occurred just early Thursday. The highway was closed for several hours but reopened about 5 a.m.

Police are seeking witnesses to the incident. Further details were not immediately available.