Six days into the competition, the Games joined other recent international multisports competitions that have been hit by positive doping tests, including the Asian Games in Doha, Qatar last year, the Winter Olympics in Turin and the Commonwealth Games in Melbourne, Australia.

The head of the doping commission at the University Games told The Associated Press today that there have been positive drug tests, but would not say how many athletes or identify them.

"We can't provide details at this point but there have been some positive tests," Dr. Lawrence Rink, chairman of the FISU Medical Commission, said. "The details would remain private until the appeal process is over. With every case that is positive, we also keep WADA (the World Anti-Doping Agency) informed."

Four players were eventually red-carded from the soccer match, which Thailand won 1-0 yesterday to qualify for the semifinals. There were three separate outbursts of fighting, four players were red-carded and spectators became involved before police were called.

Late today, the International University Sports Federation announced match bans on six players — three on each team — and a Thai team official.

Games soccer technical official John Warnaco said the federation was considering banning the four from future university competitions, and that world governing body, FIFA, could take more action.

American-born Rink said the penalties for the positive tests could vary.

"In case of a first offense, the penalty could vary from a warning to a two-year suspension," Rink said.

"For instance, if an athlete bought a decongesting medicine at a drug store for a cold two days before he was tested positive, it may be an inadvertent use and the penalty would be milder than a case with use of steroid," he explained. "Of course, if the person has been tested positive before, there would be reasons to believe it is not an inadvertent use.

"For medal winners, they would have to give up the medals."

Rink said the athletes will not be identified at this stage.

"The details will not be made public until the appeal process is over," he said. "In fact, there have been some criticism on that but that is the process that we follow."

In competition today, University of Hawai'i senior Tanya Smith scored 10 points and grabbed 15 rebounds to help the Australia women's basketball team defeat Turkey 96-62. Smith made 2-of-5 field goals and 6-of-7 free throws as the Australians advance to tomorrow's semifinals against the Czech Republic. Russia meets Poland in the other semifinal.

The U.S. women's basketball team, led by Erin Floyd's 16 points, beat Chinese Taipei 66-55 in a consolation game.

The win gave the U.S., being represented by UNC Charlotte, a 4-2 record and a shot at fifth place. The Americans face Turkey tomorrow with the winner facing the winner of the Chinese Taipei-Canada game.

The U.S. men's volleyball team, with former UH player Alfred Reft as the starting libero, advanced to the quarterfinals with a 25-19, 25-20, 25-22 win over Chinese Taipei. The Americans (5-0) face Ukraine (4-1) tomorrow.

The U.S. softball team (3-1) defeated the Czech Republic 3-1. Kalaheo graduate Jessika Ngirblekuu, who played at Palm Beach Community College (Fla.), is a member of the U.S. team. The Americans face Canada in a playoff match tomorrow.

Also, Chad LaTourette of the United States won the men's 1,500 meters on the final day at the pool, capping a strong meet for the American swimmers. U.S. swimmers won 26 medals — 10 golds, eight silver and eight bronze. Japan was second with 15 medals overall.

"We had some spectacular performances," U.S. swim coach Mark Schubert said. "You'll see swimmers from this team competing in Beijing."