Kiefer Sutherland Splits With Long-Term Girlfriend

Kiefer Sutherland attends the premiere screening for season eight of the television drama "24" in New York, Thursday, Jan. 14, 2010. (AP Photo/Charles Sykes) (AP)

NEW YORK – Kiefer Sutherland is back in the singles game after splitting with his girlfriend of nearly three years, Allure magazine style director Siobhan Bonnouvrier, sources told the New York Post.

The "24" star, who starred in Broadway's "That Championship Season" until the end of May, developed a friendship with wealthy New York mom Eleanor Propp, numerous sources said.

Propp told the Post, "I am not dating Kiefer. We are just friends."

Sutherland's rep did not respond to requests for comment.