Hit NATO supply company compound with truck bomb, guns.
President angry at being left out of initial peace negotiations.
The militant group said they had previously cooperated with the aid agency and did not support targeting it.
Pakistani Taliban is denying the death of their No. 2 commander.
The attack in the eastern city of Jalalabad is the second major assault against an international organization in five days.
The plans were welcomed by activists in Britain who had argued the U.K. was turning its back on Afghan interpreters.
200-plus male students demanded repeal of 'un-Islamic' law.
The dramatic spike is raising concerns that gains in women's rights might be reversed with the withdrawal of most international troops next year.
A Muslim militant group, Hizb-e-Islami, claimed responsibility.