VIDEO : Spice Girl Mel B Cancels Event After Severe Injury, Surgery

Spice Girl Melanie Brown has suffered an unexplained injury in New York that required surgery to prevent her from losing her hand.

Brown said online Monday she needed three hours of surgery to repair damage to her hand. She also said she suffered two broken ribs.

She posted a photograph on Instagram and thanked doctors and nurses for their "wonderful" work but did not explain how the accident occurred.