Professor Green held after crash
Professor Green was arrested on suspicion of drink driving after police were called to reports of a robbery.
Officers, who were called to the scene of the suspected mugging in south London at about 2.40am on Sunday, found the chart star's Mercedes had been in a crash with a van.
No-one was injured but the star, real name Stephen Manderson, was arrested and questioned at a police station where he was bailed to return later this month.
A Scotland Yard spokeswoman said: "I nquiries into the circumstances of the robbery and collision are ongoing."
The rapper, who recently married Made In Chelsea's Millie Mackintosh, postponed his tour earlier this year saying he needed time to finish his new album.
He was due to play 12 dates in November but said recuperating from a recent car accident had not left him with time to work on the record.