Rihanna attacked by fan over Chris Brown

Rihanna was forced to seek medical attention after a fan threw a bottle of Lucozade at her that caused her to fall over and hurt her knee

The 'Stay' singer was targeted in an unprovoked attack by a man, who hurled a bottle of Lucozade at her, while leaving exclusive London nightclub The Box with her model pal Cara Delevingne on Saturday night (16.02.13).

The force of the glass bottle caused the 24-year-old star to fall and cut open her knee.

Her bodyguard's leg was also said to have been injured as he attempted to catch her attacker, who allegedly shouted something about Rihanna's boyfriend Chris Brown before throwing the bottle at her.

The 23-year-old R&B star is still on supervised probation for beating her in 2009.

According to MediaTakeOut.com: "The bottle caused Rihanna to stumble into a metal drate - and slice open her leg. Rihanna's bodyguard immediately went after the crazed fan but hurt his leg going after the subject. Rih's guard was taken to a London hospital for treatment, and the mad man is still on the loose."

Rihanna, who was in London to launch her fashion line for River Island at London Fashion Week yesterday, was seen clutching her injury but it did not appear to be serious.

Chris Brown feels 'hurt' after hearing Rihanna was attacked in London by a crazed fan, who shouted something about him before hurling a bottle at her that caused her to fall and hurt her knee

The 'Turn Up The Music' singer was relieved to hear his girlfriend - who he is still on probation for beating in 2009 - is "okay" after a man hurled a bottle of Lucozade at her causing her to fall over while shouting something about Chris as she was leaving exclusive London nightclub The Box with her model pal Cara Delevingne on Saturday night (16.02.13).

A source close to the 23-year-old R&B star told HollywoodLife.com: "It's f**ked up someone would do that to Rihanna, and mention Chris in the same sentence. He's hurt over stuff like that. He loves Rihanna, that's his girl and he doesn't want anybody messing with her like that. All Chris wants out of the whole situation is to make sure Rihanna is okay and she is - so that's the most important. Chris doesn't know exactly what happened, but Ri told him she was cool with all this drama. People are crazy out there and try to f**k with people just because they're a 'celebrity.' They need to get a life."

The force of the bottle caused the 24-year-old star to fall and cut open her knee.

Her bodyguard's leg was also injured as he attempted to catch her attacker.

Rihanna, who was in London to launch her fashion line for River Island at London Fashion Week on Saturday, was seen clutching her bloody knee but it did not appear to be seriously hurt.

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