Tehran accuses the US of violating a ceasefire agreement by attacking an Iranian cargo ship and states it has not decided whether to continue negotiations with Washington.
President Trump states a peace deal between Washington and Tehran is "very close," saying Iran has agreed to surrender its stockpile of enriched uranium.
President Zelensky states US negotiators are "no longer dedicating time to Ukraine" due to the Iran conflict, raising concerns about disruptions to Washington's arms supplies.