Announcement viewed as strongest proof yet that Tehran is arming Houthi rebels, violating UN arms embargo; development marks escalation in Iran's relationship with West

Cause of blaze not immediately known; Saudi authorities offer no explanation; claimed assault comes ahead of a Formula One race in the city; Yemen group says other targets also hit

Saudi air defenses destroy UAV; incident comes after Biden, King Salman discuss attacks by Tehran-supported group on Saudi civilian targets

Confidential report seen by Wall Street Journal says boats used to transport arms originating in China, Russia and Iran left from southeastern Iranian harbor of Jask

Sailors boarding fishing vessel find 1,400 Kalashnikov-style rifles and 226,600 rounds of ammunition

Irloo had returned to Iran days ago for what the country described as medical treatment

Martin Griffiths meets with Iran's top diplomat to negotiate an end to humanitarian crisis, days after Biden pulls support for Saudi-led coalition

White House cites need to mitigate humanitarian disaster; official says removal changes nothing about administration's view of group, which targeted civilians, kidnapped Americans

In statement, US military says 150 anti-tank guided missiles and three surface-to-air weapons found on sailing ship headed to Yemen

Houthi militants receiving parts for drones, other armaments resembling Iranian-produced materials in possible violation of arms embargo