The BBC says the 47-year-old singer was arrested Sunday after police responded to reports that a car had crashed into a building in Hampstead, an upscale residential area in north London.
Metropolitan Police say only that they arrested a man in his 40s early Sunday in Hampstead on suspicion of being unfit to drive. They say the man was taken to a police station and released on bail pending further inquiries.
The singer's publicists in London declined comment Tuesday.
Last year, Michael was questioned by police after his car hit a tractor-trailer, but was released. He was banned from driving for two years in 2007 after pleading guilty to driving on drugs.
