US Special Envoy Steve Witkoff and US President Donald Trump's son-in-law Jared Kushner held positive talks in Doha on Tuesday, while technical consultations with the Iranian side are progressing, a US administration official says, Bloomberg reports.

US negotiators Jared Kushner and Steve Witkoff held positive discussions with regional leaders in Qatar, while technical talks with Iran are progressing, Bloomberg reports.

According to the source, progress continues in some technical talks which are not being held at a high level.