ISLAMABAD (AP) — Islamabad has thanked Qatar for the $3 billion investment in Pakistan announced by the energy-rich Gulf Arab nation's ruler. Abdul Hafeez Shaikh, economic adviser to Pakistani prime minister, tweeted Pakistan's thanks on Monday, hours after Emir Sheikh Tamim bin Hamad Al Thani made the announcement, which was carried on Qatar's official news agency. It followed the emir's two-day visit to Pakistan over the weekend, during which he held talks with Prime Minister Imran Khan.Read more on NewsOK.com