Iran’s primary presidential plane and two other government airliners have touched down in the Omani capital Muscat. The highly unusual arrivals come amid reports that the regime in Tehran is looking to negotiate an end to the ongoing conflict with Israel, as well as growing speculation that the United States may be about to directly enter the fighting in a major way.

Where exactly the Iranian aircraft, a pair of Airbus A321s and an Airbus A340, originally departed from is unclear. The trio of aircraft used the callsigns JJ25, JJ26, and JJ28. At the time of writing, there has been no official word about the purpose of the flights or who might be on them.

Publicly available air traffic control recordings suggest that a fourth aircraft from Iran may be inbound to Muscat. However, there does not appear to be any clear indication of this yet from available online flight tracking data.