They've been together for the past four years, but it seems that actress and comedian Sarah Silverman's relationship with actor Michael Sheen is over.

Silverman took to Twitter yesterday to make the announcement in a suitably amusing manner, saying that the pair had 'consciously uncoupled' over Christmas because "we just live in different countries & it got hard."

Sheen, who was formerly married to Kate Beckinsale and has a daughter with her, is based in the UK while Silverman is in Los Angeles.

He has not commented on the split so far, but see Silverman's tweet below:


As several people pointed out, she also chose to make the announcement on Sheen's birthday, although we're guessing that wasn't intentional...