London, Apr 14 : Mel Gibson's wife has filed a divorce petition weeks after the actor was spotted frolicking with a brunette on a beach.
Robyn Gibson, 52, has filed papers to end their 28 years of marriage citing "irreconcilable differences".
Sources blame the split on Mel's relationship with a Russian musician called Oksana.
The pair had reportedly become close on the set of his latest film The Edge of Darkness, and were snapped coming out of his trailer together, however, the Oscar winner denies any affair.