US, Iran leave door open to dialogue after tense Islamabad talks

After a sleepless and at times tense night in Islamabad, Iranian and U.S. officials ended their highest-level talks in decades, but 11 sources familiar with the negotiations said dialogue was still alive, Reuters reported. 

The weekend meeting to resolve the conflict between the U.S. and Iran, held four days after last Tuesday's ceasefire announcement, was the first direct encounter between U.S. and Iranian officials in more than a decade and the most senior engagement since Iran's 1979 Islamic Revolution.

Inside Islamabad's luxury Serena Hotel, the talks unfolded across two separate wings and one common area -- one for the U.S. side, one for the Iranians and one for trilateral meetings involving Pakistani mediators, operational staff told Reuters.