Washington says it offered 'very serious' ideas to Tehran on rescuing deal, and is waiting for its efforts to be 'reciprocated'

Armed forces spokesman says Iran probing who was behind the blast that struck alleged IRGC vessel, suspicions point to Israel and the US

State TV broadcasts grainy still shots of MV Saviz on fire and with a tall column of smoke rising into the sky; doesn't give cause of explosion

Iranian media reports provide no further details of charges against those allegedly involved in downing of jet that killed 176 people

Washington reiterates it will only grant concessions if Iran returns to compliance with deal; signatories to start talks in Vienna on Tuesday

State media reports arrest in East Azerbaijan province; Islamic Republic says it has detained others with ties to international intelligence organizations

The Oron, a Gulfstream jet outfitted with a variety of sensors and data collection equipment, can rapidly identify targets in all weather conditions, developer says

Kylie Moore-Gilbert details conspiracy theories posted about her by Tim Anderson, fired by Sydney University for showing students a picture of swastika superimposed on Israeli flag

French foreign minister speaks to Iranian countepart, calls on Tehran to 'be constructive,' abstain from further violations of nuclear deal, ahead of indirect negotiations with US

Foreign Ministry appears to rule out mutual trust-building measures, reiterates all US sanctions must be removed before it takes any steps toward compliance with deal