Cordon is in place while chemical is identified. Ambulance staff are treating nine people.
M6 closed in both directions between J3 A444 / B4113 (Nuneaton / Bedworth / Coventry) and J4 M42 / A446 (Coleshill), congestion on M6 to J2 M69 / A46 (Coventry) Northbound.
More top news
West Midlands weather for the start of the week, brought to you by Amanda Houston
Amanda Houston brings you the East Midlands weather for the start of the week.
East Midlands weather forecast, brought to you by Amanda Houston