THE SOUTHBOUND sliproad of the M5 motorway from Frankley Services has been closed after a hydrochloric acid spill.
Numerous fire crews have attended the incident which happened when two workers were securing a leaking chemical tanker at the service station.
On arrival, ambulance crews, firefighters and police officers worked together to evacuate the service station and ensure the safety of those there.
The two workers were decontaminated by firefighters and were then checked over by paramedics as a precaution, before being discharged.
A West Midlands Ambulance Service spokesman said it was a miracle no one was injured.
The lorry company then sent a second tanker and, using specialist protection equipment, the chemicals were transferred to the other vehicle.
The road was expected to reopen at 11.30pm.