Details could be hard to come by. In a statement, team president Donnie Nelson said, "No other statements will be issued."
It's the second such suspension for West in the past couple of weeks. Head coach Rick Carlisle suspended West in mid-October for a locker-room outburst following a preseason game. That suspension was also labeled as indefinite, but West was later cleared to play the Mavs' next preseason game and missed no time.
It's just the latest in a growing list of troubles for West, who in 2009 was arrested for a weapons charge that was later attributed to the guard's being diagnosed with bipolar disorder. West was suspended by the NBA for 10 games at the time.
This would be the 8-year veteran's second season in Dallas. Last season, West averaged 9.6 points and 3.2 assists per game mostly coming off the bench, right around his career averages of 9.7 and 3.6 points per game. He re-signed with Dallas in July.