• Officials say ceasefire extension immediate priority, warring parties asked to extend truce by 45 days; Tehran favours Islamabad as venue for further talks • PM tells cabinet ceasefire under ‘strain’ but holding; efforts underway to ‘resolve a few hurdles’ ISLAMABAD: Another round of Iran-United Stat­­es dialogue was being acti­vely pursued as Pakistan, regional capitals, and ma­­jor powers have step­ped up efforts to prevent the fragile process from sliding back into confrontation, diploma...