08/16/2013 11:16 EDT | Updated 10/16/2013 05:12 EDT

Chemical spill closes Prince George highway

Police and firefighters in Prince George have blocked off the Old Cariboo Highway after a crash and a chemical spill.

At lease one RCMP officer is in hospital being treated for exposure.

Officials are asking anyone who may have driven through the spill to head to the hospital immediately.

It isn't clear yet what the chemical is but police say it is a corrosive material in liquid form.