Washington, April 10 -- US Vice-President JD Vance has warned Iran not to "play" with the US as he embarked for Pakistan for conducting negotiations geared towards ending their war.

Vance, who has long been known as a sceptic of foreign and military interventions, as well as for his outspoken critique about the prospect of sending troops into open-ended conflicts, set off Friday to lead mediated talks with Iran in Islamabad.

Boarding Air Force Two on his way to the Islamic Republic, Vance commented "We're looking forward to the negotiation. I think it's gonna be positive. We'll of course see."Citing President Donald Trump, he added "If the Iranians are willing to negotiate in good faith, we're certainly willing to extend the open hand," a...