Dominic Monaghan's allegation came unsolicited. A fan urged him to persuade Fox to join Twitter when Monaghan gave this response: [H]e beats women. No thanks.
Twitter user and Lost fan @omgbeccaa replied, WHAT ABOUT ALL THOSE GOOD TIMES YOU HAD TOGETHER?!
Monaghan shot back, how do you know we ever did? you don't know either of us. he beats women. not isolated incidents. often. not interested.
Monaghan, who played troubled singer Charlie Pace on Lost, said he was not just making an allegation against Fox - he was speaking the truth.
[A]n accusation is when you claim someone did something wrong.i know.but hey little fan girl maybe want to get slapped, he tweeted.
Becca said the question got carried away and was surprised by Dominic Monaghan's response.
[T]his should be between matthew and dom, she tweeted yesterday.
Monaghan's claims are not the first time Fox has been accused of beating women.
Heather Bormann, a party bus driver, filed a $75,000 lawsuit against Matthew Fox in August, claiming the Lost actor assaulted her while trying to step on the bus. Fox is counter-suing and alleges Bormann actually assaulted him, the New York Post reported.
That lawsuit is not the only legal trouble for Matthew Fox.
Earlier this month, Fox was arrested on suspicion of DUI in Bend, Ore., where he makes his home.