Top negotiators from the United States, Iran and Pakistan have arrived in Switzerland ahead of talks that aim to secure the fragile ceasefire and reach a deal on the future of Iran’s nuclear programme. The US team was led by Vice-President J.D. Vance, who arrived in Burgenstock, the resort hosting the talks on Sunday. He joined special envoy Steve Witkoff and Jared Kushner, President Donald Trump’s son-in-law, who were already on the ground, the Associated Press reported.