NEW : NATO departments say they are monitoring the reports . NATO spokesman says it is `` highly likely '' close air support caused the deaths . Pakistan 's prime minister calls an emergency meeting of services chiefs . Afghanistan closes The U.S. State and Defense supply routes across the border to Pakistan .
NEW : The U.S. State and Defense departments say they are monitoring the reports . ISAF spokesman says it is `` highly likely '' close air support caused the deaths . Pakistan 's prime minister calls an emergency meeting of services chiefs . Pakistan closes NATO supply routes across the border to Afghanistan .