Cricket Australia and the Australian Cricketers Association will monitor events, the players' union is becoming increasingly concerned about developments, reported Fox Sports.

"There's no doubt that we think the risk has escalated in recent times," said ACA chief executive Paul Marsh said.

"There has never been suicide bombings in Bangladesh until recently and that's a huge concern for us, as is the fact they have occurred in the two areas where the matches will be played."

Australia are due to play a Test match and two one-day internationals in Dhaka as well as a Test and one-dayer in Chittagong between April 9 and April 28. Although it is more than five years since Bangladesh were granted official Test status by the ICC and almost eight years since they achieved one-day international legitimacy, Australia have yet to tour Bangladesh for a full series.

Representatives from Cricket Australia, the ACA and security experts will conduct a pre-tour inspection of conditions and facilities in Bangladesh late next month or early February. A decision is then expected to be made on whether the three-week tour goes on.

Concerns also exist as to whether the construction of a new stadium in Dhaka will be completed in time for the tour.

A CA spokesman said the game's governing body in Australia was aware of the volatile political climate in Bangladesh and was monitoring events and seeking regular updates from the federal Government.

"We will continue to monitor the situation, and certainly our administration is working closely with Paul Marsh and other members of the ACA," the spokesman said. "But between now and our pre-tour inspection, all we can do is keep a close eye on what is happening there."