Daniel Radcliffe found fame as Harry Potter

Daniel Radcliffe has sparked rumours that he's split from girlfriend Rosie Coker after he was pictured walking arm-in-arm with a mystery brunette on a night out.

The pair talked and laughed as they made their way back to the 22-year-old actor's west London home.

It's not the first time the Harry Potter actor has been seen with the mystery girl - they were first spotted hanging out together at a cricket match in 2010.

However, a spokesman for Daniel says that his companion is 'just a friend'.

Asked if he'd split from Rosie, the rep told The People: 'There will be no further comment on his private life.'

Daniel began dating production assistant Rosie, also 22, in 2010 after meeting her on the set of Harry Potter And The Half-Blood Prince in 2007.

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Anna Duff