Staffordshire Police and Fire and Rescue Service are urging people in Cannock to stay away from the Orbital Retail Park after a car crashed into a gas sub-station.
The collision, which involved a red BMW 3 series, happened around 7.10 this evening near the Sainsbury's petrol station.
A 300-metre exclusion zone has been set up around the area after gas was found to be leaking from the sub-station. People working nearby have also evacuated.
Gas engineers are on-site assessing the damage. Officers have arrested a man from the Brownhills area in connection with the incident.
CCTV footage has been released by British Transport Police of two people seen repeatedly crossing rail tracks, narrowly missing trains.
A couple were caught on CCTV walking into a store and moments later leaving with a £299 table.
He took them from a parked van - not realising it was an unmarked police vehicle.