UN's Guterres calls for return to U.S.-Iran ceasefire

June 11 (Reuters) - U.N. Secretary-General Antonio Guterres is "deeply concerned" by the continued escalation in the Middle East, including strikes by the United States on Iran and Iranian strikes on its neighbors, a U.N. spokesperson said in a statement on Thursday.

"He urges the parties to return to the full implementation of the ceasefire and avoid any further deterioration, which, as he told the Security Council yesterday, could trigger a full resumption of the conflict, with unpredictable consequences for the region and the world, especially the most vulnerable countries," the spokesperson said.

(Reporting by Daphne Psaledakis in Washington and Ryan Patrick Jones in Toronto; Editing by Daphne Psaledakis)