A lawsuit that could derail a Seattle group's plans to build an arena and buy the Sacramento Kings has been set for a Feb. 22 hearing in King County Superior Court.

The suit, brought by a Seattle longshoreman's union, contends the arena financing agreement between local government officials and a potential team ownership group violates state environmental law.

Longshoremen and other workers brought the suit saying they fear they could lose thousands of maritime and industrial jobs if a basketball arena and entertainment district were built in the port area south of downtown Seattle.

Attorney Peter Goldman, representing the International Longshore and Warehouse Union Local 19, said the city of Seattle and King County unlawfully committed to a plan to build the arena at that site prior to studying alternative sites. The suit seeks to nullify the arena financing "memorandum of understanding" between city, county and the private group, led by hedge fund manager Chris Hansen.

The union's lawyer contends the arena proponents are giving the NBA the impression the project is further along than it is.