Cementos Argos' Martinsburg cement plant in the USA called fire units after 15.51h yesterday after what was thought to have been an explosion on the site.

The 167th National Guard along with fire engines from Martinsburg, South Berkley, Bedington, Baker Heights Washington County, and Black Creek Valley fought fires for more than two hours. The fire was under control by 18.44h, but officials did not leave the site until 20.05h.

There were no reported injuries.