RIYADH, June 14 (Xinhua) -- Saudi air forces intercepted on Thursday a ballistic missile fired at border city Khamis Mushait from Yemen, Al Arabiya local news reported.

The incident took place one day after another missile was intercepted by the forces before hitting southern city Jazan. Three civilians from Jazan were killed last week in a projectile attack.

Saudi Arabia has been accusing Iran of supporting Houthi rebels in Yemen by supplying them with weapons and missiles, causing instability in the war-torn country.

The Saudi-led coalition involved in a war in Yemen announced on Wednesday an operation to liberate Red Sea port city of Hodeidah from Iranian-allied Shiite Houthi rebels. Aid agencies warned that such adventure could cost the lives of 400,000 civilians.