London, March 17 (IANS) Troubled singer Amy Winehouse had yet another tiff with a fan on pushing one of her friends to have a photograph with her.

Winehouse saw the scuffle and as the man tried to take her photo with his cellphone, she grabbed at his handset and covered the lens with her hand preventing him from getting a snap, reports Britain's The Sun newspaper.

The fan said to have accidentally pushed one of her friends out of his way in the process.

'Amy saw him knock over her friend. She was in a good mood so she just put her hand up and pushed the phone,' dailystar.co.uk quoted a source as saying.