The visit of a top US official overseeing South Asian affairs to Pakistan has been postponed, the Foreign Office said on Sunday, amid indications that Islamabad was still evolving a response to Trump administration’s new Afghan strategy. Alice Wells, the acting assistant secretary of state for South and Central Asian Affairs and acting special representative for Afghanistan and Pakistan, was scheduled to visit Islamabad next week, but the visit has been put off by the Pakistan government “until a mutually convenient time.”