Bangladesh on Sunday threw out pace bowler Al-Amin Hossain from the World Cup for indiscipline and promised a full inquiry after the tournament was over.
A media release from the team management said Al-Amin had "breached team rules", with a source telling AFP that he had stayed out late in Brisbane on the night of February 19 and, as a result, breached a team curfew.
"Al Amin has been found to have breached team rules and will take no further part in the World Cup," the statement read. "Following consultation with the Bangladesh Cricket Board, the team management has decided to send the player home immediately.
"The Board will conduct its own inquiry into the breach after receiving the manager`s report at the end of the team`s World Cup campaign.
"At this stage the BCB or the team management will not release any further information or make any comment on this matter."
It was not clear who will replace Al-Amin at the World Cup.
Bangladesh were in Brisbane for the match against Australia on Saturday, which was washed out.
Al-Amin, 25, has played six Tests and 11 one-day internationals since his debut in 2013.
He had been reported for a suspect action last September, but was cleared to play by the International Cricket Council after undergoing an independent test in India.
Bangladesh are due to take on Sri Lanka at the Melbourne Cricket Ground on Thursday.