The father of teenage actress Lindsay Lohan (search) has been charged with assaulting a relative at a party at the family's Long Island home, authorities said.

Michael Lohan, 42, was accused of striking his brother-in-law, Matt Sullivan, at a first communion party at the family's home in Merrick on May 23.

Lohan was arraigned Thursday in First District Court in Hempstead on charges of second-degree assault and aggravated harassment. He maintains that Sullivan was drunk and was responsible for the fight.

Lindsay Lohan, 17, has starred in "Mean Girls," (search) "Confessions of a Teenage Drama Queen" and "Freaky Friday." She is scheduled to host the MTV Movie Awards on June 10.

Her father is due back in court on June 8.