Talks with India were "going in the right direction" after the visit of Prime Minister Narendra Modi and External Affairs Minister Sushma Swaraj, he said but regretted that the attack disturbed the negotiation process.
Sharif vowed that Pakistan would go to any length to uncover the alleged use of its soil in the January 2 attack on the air base in Pathankot by suspected JeM terrorists.
"It is our responsibility to uncover if our soil was used in the attack. We will do this and the ongoing investigations will soon be completed," Sharif told reporters here.
