“All people who were admitted to hospital have now been released with no lasting ill effects.
“The group is able to reiterate its assurances to the public that no risk is posed. Any smouldering from the scene is a result of the burning paper and is not connected to chemicals.
“Work is progressing to get the people displaced from their vehicles to Corley Services Station back on the road.
“Our priority will then be to get the M6 open again.”