SACRAMENTO — Authorities are investigating allegations that Sacramento Kings player Justin Williams sexually assaulted a female acquaintance, a Sacramento Police Department spokesman said Thursday.

Team spokesman Troy Hanson said Williams has been given an indefinite leave of absence and returned to Sacramento from New Mexico to obtain a lawyer, a step recommended by team officials. The Kings played the Utah Jazz Thursday night in Albuquerque.

Hanson would not say whether the team planned to suspend Williams.

"We recently became aware of a complaint involving Justin Williams that apparently is being investigated by the Sacramento police," Hanson said. "We are currently in the process of evaluating any additional information that becomes available to us."

Criminal investigators searched Williams' home Wednesday night, leaving with some items that police are evaluating, police Sgt. Matt Young said during a news conference.

Williams, a reserve center, has not been charged and is cooperating with officers, Young said.

NUGGETS SIGN WILKS: The Denver Nuggets signed veteran guard Mike Wilks on Thursday. The 5-foot-10 Wilks has played five NBA seasons with Atlanta, Minnesota, Houston, San Antonio, Cleveland and Seattle. He averaged 3.6 points and 1.7 assists in 47 games with Seattle last season. In 214 career games, he has averaged 2.5 points and 1.2 assists.

KEON CLARK ARRESTED: At Splendora, Texas, a former NBA player wanted on drug and weapons charges in Illinois was arrested Thursday when U.S. marshals stopped him aboard a commercial bus heading out of Houston. Keon Clark, who was last a member of the Utah Jazz and Phoenix Suns teams, was scheduled for trial in August 2006 in Vermilion County in Illinois for possession of marijuana, two counts of possession of a controlled substance and two counts of firearm possession. He also is facing charges of driving with a suspended license, operating an uninsured motor vehicle and DUI. On Wednesday, the U.S. Marshals Service got a tip that the 32-year-old Clark was in Houston. After marshals stopped the bus in Splendora, about 34 miles northeast of Houston, Clark was arrested without incident.

JUDGE WEIGHS SONICS LEASE: Lawyers for the Seattle SuperSonics and the city of Seattle argued before a federal judge Thursday about whether the dispute over the team's lease at KeyArena should be resolved in court or in arbitration. The arguments were technical and revolved around competing sections of the lease agreement. One says that the length of the lease is not subject to arbitration. The other says only the Sonics can go to court over the contract. The dispute is over whether the Sonics can buy their way out of the lease scheduled to end in 2010 and move the team. Seattle City Attorney Tom Carr says he wants the case handled by a judge rather than by arbitrators because judges make decisions and arbitrators reach compromises. U.S. District Judge Ricardo S. Martinez said he would make a ruling as quickly as possible.