NEW : Panetta shares Allen 's regret for any loss of life , said Pentagon spokesman Capt . The US State and Defense departments say they are investigating 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 lines across the border to Afghanistan .
NEW : The US State and Defense departments say they are investigating 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 lines across the border to Afghanistan .