Saudi Arabia accused Iran of supplying weapons to Shiite rebels in Yemen and urged the U.N. Security Council to impose sanctions on Tehran for violating an arms embargo.

Saudi Ambassador Abdallah Al-Mouallimi said in a letter to the council obtained late Saturday by The Associated Press that the smuggling of arms to Houthi rebels violates council resolutions and constitutes “a direct and tangible threat” to Saudi Arabia, Yemen, the region and international peace.

Sunni-majority Saudi Arabia and Shiite-majority Iran are regional rivals and back opposing sides in Yemen and Syria. […]