FILE PHOTO: The Iranian flag flies in front of the U.N. nuclear watchdog (IAEA) headquarters in Vienna, Austria, May 24, 2021. REUTERS/Lisi Niesner/File Photo
ROME (Reuters) -The United States, Germany, France and Britain urged Iran on Saturday to resume compliance with a 2015 nuclear deal in order to "avoid a dangerous escalation".
Leaders of the four countries, who are hoping to persuade Tehran to stop enriching uranium to near-weapons-grade levels, said they wanted a negotiated solution.
