Pakistan is stepping up diplomatic efforts to hasten US and Iran peace talks, as Tehran says it's reviewing Washington's latest responses and President Donald Trump suggests he could wait a few days for "the right answers" from Iran but is also willing to resume attacks on the country.
Six weeks since a fragile ceasefire took effect, talks to end the war have made little progress, while soaring oil prices have raised concern over inflation and the impact on the global economy.
Trump also faces domestic pressure before November's midterm elections, with his approval rating dropping close to its lowest since he returned to the White House on the surge in fuel prices.
