Seattle city officials filed a lawsuit Monday to keep the SuperSonics from leaving town.

The lawsuit filed in King County Superior Court was a counter move to a Sonics' attempt to be released from their lease on KeyArena.

According to the complaint, "The Sonics promised to 'play all home games ... exclusively"' at the arena at the Seattle Center through Sept. 30, 2010.

"The city, with the help of some fine lawyers, is standing up to a pro sports team," city attorney Tom Carr said at a news conference. "Too often, pro sports teams have run over local governments."