British actor/comedian Russell Brand has reportedly split from his girlfriend Jemima Khan after more than a year together.

The Forgetting Sarah Marshall star has been dating British socialite Khan on and off since 2013, but a new report published in Britain's Mail on Sunday newspaper suggests the couple has parted ways.

A source tells the publication, "The relationship's simply run its course."

The romance was believed to be Brand's first serious relationship since divorcing pop star Katy Perry. Khan previously dated actor Hugh Grant.