Kiwis cancel cricket tour
 Should Pakistan play away? Have your say

Twelve people were killed and 34 injured by the blast, which occurred near the teams' hotel just three hours before the scheduled start of the second Test.

"At the moment everything's up in the air, as it has been since 11 September," Gray said.

"We're constantly working with Pakistan to restore normality but this is another blow, and in addition there is the political problem with India that stops them going there."

The ICC has yet to decide how the cancellation will affect its Test Championship, launched a year ago with the aim of standardising playing schedules.

New Zealand's tour had originally been postponed in the wake of the terrorist attacks on New York and the resulting military action in neighbouring Afghanistan.

Pakistan Cricket Board (PCB) director Brigadier Munawar Rana said a decision to cancel the tour had been taken after mutual consultation between the PCB and New Zealand Cricket (NZC).

"We provided the New Zealand team with the best security but this was beyond our control and is very sad.

"It's too early to say that other teams will stay away from touring Pakistan but we need to make all-out efforts and we know it will be tough."

Australia tour

Rana added cancelling the remainder of the tour would cause more financial losses for the PCB, which has already lost more than $10 million (�6.8m) in potential revenue since September.

Australian Cricket Board (ACB) chief executive James Sutherland said that plans to tour Pakistan in September and October would be reviewed.

"With some months to go before we travel to Pakistan the situation is clearly quite fluid," he said.