The collision happened at about 7.20am on Monday, near junction seven on the northbound carriageway, resulting in a seven-mile tailback .
Highways England regional operations manager Adam Morgan said: "The roads are back open now. There is no congestion now.
"An up and over diversion was set up at junction seven. We took the traffic off at the A34 island and back round to the other side."
West Midlands Ambulance Service stated: “We were called at 7.17am to reports of a road traffic collision on the M6 north, junction seven in Great Barr. Two ambulances attended the scene. On arrival, we found two patients.
"Both were assessed and had sustained non-life threatening injuries and were conveyed to Sandwell District General Hospital for further assessment.”