The United States is to withdraw negotiators from Pakistan after the team failed to seal a deal with Islamabad to re-open supply lines to NATO troops serving in Afghanistan.
Pakistan closed overland supply routes last year after a cross-border NATO air attack left 24 Pakistani soldiers dead.
Many believe recent comments made in Kabul by US Defence Secretary Leon Panetta proved unhelpful.
Panetta said the US was losing patience with Pakistan because of the safe haven the country offered insurgents.
The US will continue to use northern routes into Afghanistan at 2 and half times the price of a supply line through Pakistan territory.