Kanye West is under investigation for alleged criminal battery.
Reports from TMZ and the New York Post's Page Six column state the 44-year-old musician was involved in an argument that "turned physical". A fan had reportedly asked the rapper for his autograph while he was sitting in his vehicle outside the private club Soho Warehouse.
He allegedly punched the fan who then fell to the ground. The news was first reported by Fox LA.
Local authorities are investigating the alleged incident, and West faces a maximum jail sentence of six months.