Charlie Sheen hit out at Denise Richards because she wouldn't let him take their daughters to Mexico.

The 49-year-old actor slammed his ex-wife in a now-deleted Twitter rant yesterday (21.06.15) and it has now been claimed he branded her a ''terrorist'' and the ''worst mom alive'' after she denied his last-minute request to take Sam, 11, and Lola, 12, to celebrate Father's Day on vacation with another of his ex-wives, Brooke Mueller, and their six-year-old twin sons Bob and Max.

A source told RadarOnline.com: ''Charlie didn't know it was Father's Day until Sunday, and decided he wanted to take Sam and Lola to Mexico.

''He acted out after being denied the outlandish request.

''Brooke is currently in Mexico, and Charlie most likely wanted to join her down there.(sic)''

Despite Charlie's tirade of abuse against her, Denise wished the former 'Two and a Half Men' star - who also has a grown-up daughter, Cassandra, from a previous relationship - a happy Father's Day.

She wrote on twitter: ''Happy Dad's Day! @charliesheen have a great trip in Mexico! Kids were disappointed u weren't here for it- Hey we'll celebrate when u r back! (sic)''