Despite fruitless round in Doha, efforts set to continue beyond July deadline after which IAEA says it will no longer be able to verify nuclear activities permitted under JCPOA

A day after indirect negotiations end in Qatar without significant progress, Tehran's UN ambassador says 'ball is in US’ court'

Iranian foreign minister believes talks are 'positive,' says Tehan is 'making serious efforts' to reach agreement, after US said 'no progress made'

State Department accuses Iranians of raising unrelated issues, says Tehran 'apparently isn't ready to make a fundamental decision on whether it wants to revive the deal or bury it'

'Unless the president intervenes immediately, we are likely to languish in this abyss for the foreseeable future,' writes Siamak Namazi, Iranian-American detained since 2015

US State Department has not yet acknowledged end of talks; European mediator Enrique Mora vows to 'keep working with even greater urgency' to further deal

Semiofficial news agency describes negotiations as finished with 'no effect' on ending deadlock; no comment from either Washington or EU moderators

Top Iranian nuclear negotiator meets with EU official in Doha after earlier meeting Qatari officials

Washington's special envoy Robert Malley meets with Qatari foreign minister; Iran's Ali Bagheri joins Iranian ambassador in capital ahead of indirect negotiations

Fresh negotiations are separate from stalled discussions in Vienna; EU to act as go-between, but new location puts Doha in a key spot