Brisconnections, the operator of Brisbane’s Airport Link tunnel, has conceded that there is ‘‘significant uncertainty’’ about the outcome of crunch talks with its bankers and will suspend its units from trading on the ASX.

In a statement released after the market closed, the troubled operator of Brisbane’s Airport Link said the board had decided today to enter into ‘‘formal negotations’’ with its lenders about ‘‘potential reconstruction options’’.

The decision took ‘‘into account that on present levels and operating costs, the enterprise value may be less than the outstanding debt’’, BrisConnections said in a short statement.

Earlier today, BrisConnections was placed in a trading halt and will not trade on the ASX until it has negotiations with its lenders.

The troubled toll-road operator also announced the sudden departure of two of its seven directors – Andrea Harcourt and Richard Wharton – on Monday.