The Financial Times quoted well-informed American sources as saying that Qatar is strengthening its role in mediating between Washington and Tehran and facilitating direct talks between them.
The newspaper quoted a senior US official that both sides need to agree and are ready to do so, but the biggest problem is the loss of confidence.
He noted that Qatar has been very helpful in supporting efforts to resume full implementation of the nuclear agreement known as the Joint Comprehensive Plan of Action.
The newspaper pointed out that the Qatari role revolves around facilitating the talks to ensure that outstanding issues, such as the exchange of prisoners and the relief of additional sanctions, are addressed.
The Financial Times quoted a senior US official as saying that "Qatar has been instrumental in supporting efforts to resume full implementation of the Joint Comprehensive Plan of Action (the nuclear deal)."
Qatar has close relations with both the United States and Iran, which qualifies it to play the role of mediator between them.
The Iranian president visited Doha recently.
Earlier, Qatari Foreign Minister Mohammed bin Abdulrahman Al Thani paid an unannounced visit to Tehran.
The US official's speech coincides with Western reports indicating the imminent reach of a settlement on reviving the nuclear agreement signed between Tehran and world powers in 2015, which became in the power of nullity after Washington withdrew from it in 2018.
The European Union said it was time for Washington and Tehran to take the necessary political decisions to reach an agreement.
The EU official coordinating the talks, Enrique Mora, stressed that the necessary political decisions must be taken to conclude the negotiations successfully in the next few days.