Secretary of State Condoleezza Rice has reached Islamabad on Thursday morning. US Secretary of State Condoleezza Rice met with President Asif Zardari. The tension between Pakistan and India after Mumbai attacks has been discussed during the meeting. US Secretary of State said the global threat of extremism and terrorism has to be met by all states, taking a very tough and hard line. President Zardari informed Rice that Pakistan is constantly in touch with Indian government after Mumbai attacks and ready to cooperate for investigations. President Zardari said that Pakistan won't allow anyone to use its soil for terror activities. Earlier, Rice met with Prime Minister Yousuf Raza Gilani. Both the leaders discussed bilateral issues, regional situation and tension between Pakistan and India after Mumbai attacks. US Assistant Secretary for Bureau of South Asia Richard Boucher, US ambassador in Pakistan N. W. Peterson and Foreign Minister Shah Mahmood Qurishi were also present at this occasion. Rice said Pakistan had to mount a "robust" response to last week's attacks in the Indian city of Mumbai, which left at least 188 people dead. India says the attackers had links to Pakistan, which Islamabad has denied. Rice arrived in Pakistan's capital after visiting India amid growing tension between the two neighbours. In Delhi on Wednesday, she called on both countries to show moderation in their response to the Mumbai attacks.