ISLAMABAD, June 27 (Xinhua) -- Pakistan's National Security Adviser (NSA) Nasser Khan Janjua resigned on Wednesday, his office said.

Caretaker Prime Minister Nasir ul Mulk has accepted Janjua's resignation, an official notification said.

"National Security Adviser Lt.General Nasser Khan Janjua has tendered his resignation," a spokeswoman for the NSA office said. But she did not cite any reasons for the resignation.

Janjua, a former army general, had served corps commander in southwestern Balochistan province.

He had been involved in high level talks with Afghanistan and India as part of Pakistan's quest for improved relations with the neighbors.