Warwickshire Police said the motorway was expected to stay closed for several hours.
The tanker had a tyre blow-out and caught fire closing the north and southbound carriageways.
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They said: "Integrity in sport is not a joke and we have opened an investigation to establish exactly what happened"
The zoo had pest controllers bury pellets in the bird enclosure in order to get rid of rats, but they brought the pellets to the surface.
Sergeant Elor Azaria was caught on video shooting dead the wounded assailant, sparking one of the most divisive cases in Israel's history.