The Rockets said in a statement that they were "aware of the situation and are in the process of gathering information regarding this incident."
General manager Daryl Morey was attending the Beijing Olympics and the Rockets said they would not make any further comment "until we have all the details and have had time to brief our personnel who are traveling due to the Olympics."
Alston has had other brushes with the law. Last August, Alston was charged with misdemeanor assault and public intoxication in Houston after a confrontation with a parking-lot attendant. About three weeks later, he was arrested in New York City after an alleged altercation in a nightclub, although charges in that case were later dropped.
Alston averaged 13.1 points and 5.3 assists last season.
