“The scene is now clear,” said National Highways: South-East, who thanked drivers for their patience via their Twitter profile.
“Please have a safe onward journey,” they said.
The incident was first reported through the Sussex Roads Police Twitter at 9.08am, saying that the road had been closed ‘due to an overturned vehicle and debris’.
The road remained closed between junction 10 near Tinsley Green and junction 11 near Crawley while the clean-up took place.
Sussex Roads Police said the driver of a van was arrested on suspicion of drug driving.