Shakib Al Hasan was seen asking his batsmen to leave the field in protest against umpiring errors, while Nurul Hasan argued and pointed finger at Sri Lanka's Thisara Perera.
"Regrettable and unacceptable" is how Sri Lanka Cricket chief Thilanga Sumathipala has described the behaviour of the Bangladeshi team during their crucial match against the hosts on Friday night.
Bangladesh captain Shakib Al Hasan was seen gesticulating at his batsmen, appearing to be conveying that they leave the field in protest against umpiring errors.
The Bangladeshis claimed that the first two balls of Isuru Udana's final over when Bangladesh needed 12 were no balls and should have been called as such for height. Both ended as dot balls and even resulted in a run out.
"That sort of behaviour at an umpire's decision was most unacceptable and regrettable," Sumathipala said.
Reports also claimed that Bangladeshi dressing room glass pane was left to smithereens after their victory celebration as they beat the hosts narrowly to set up Sunday's final against India.
Bangladesh captain Shakib Al Hasan and reserve player Nurul Hasan were on Saturday fined 25 percent of their match fees and given one demerit point each for breaching the ICC Code of Conduct.
Shakib was found to have breached Article 2.1.1 of the ICC Code of Conduct for Players and Player Support Personnel, which relates to conduct that is contrary to the spirit of the game , while Nurul was found guilty of violating Article 2.1.2, which deals with conduct that brings the game into disrepute .
The incident involving Shakib happened the in 20th over of the Bangladesh innings when he came to the edge of the boundary and gestured at his batsmen to come off the field while remonstrating against an umpiring decision.
As regards Nurul, the reserve player argued and pointed finger at Sri Lanka captain Thisara Perera which led to unruly public behaviour after he was sent by the team on to the field of play to pass on a message to the two batsmen. "On Saturday morning, both Shakib and Nurul pleaded guilty to the offences and accepted the sanctions proposed by Chris Broad of the Emirates Elite Panel of ICC Match Referees and, as such, there was no need for a formal hearing," an ICC release said.
The Sri Lankan government has launched a probe into the incident of property damage after a dressing room door was smashed to smithereens.
A camera caught a number of Bangladesh players racing down the steps in front of their dressing room with shards of glass strewn on the stairs. Match referee Chris Broad has seen the footage and spoke to the catering staff who have reportedly named the player responsible.
Bangladesh will meet India in Sunday's final of the Twenty20 tri-series after Mahmudullah blasted 43 not out off 18 balls to secure their thrilling two-wicket victory over Sri Lanka in an ill-tempered match on Friday.
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