The investigation into the incident remains ongoing, said Cricket Australia, which has submitted its report to the International Cricket Council.
Cricket Australia (CA) is sending its own security expert to Bangladesh to determine whether or not it is safe for the Australian team to proceed with its planned tour.
Cricket Australia said an independent security assessment confirmed there is a risk of terrorism in Bangladesh targeting Australian nationals.
Gambhir's remarks came after the touring team was subjected to racial abuse by a few individuals in the stands
Play was halted for a few minutes on the fourth day of the third Test between India and Australia after the visiting players complained of abuse from the crowd at the Sydney Cricket Ground on Sunday.
Former India all-rounder Irfan Pathan condemned the racial abuse at Sydney Cricket Ground
All that's transpired on and off the cricket pitch on Monday.