RIYADH, May 21 (Xinhua) -- Saudi Arabia announced on Tuesday that the Houthi militia has attempted to "target a civilian site in Najran with a bomb-laden drone," Saudi Press Agency reported.

The site in the southwest of Saudi Arabia is used by civilians, said Turki Al-Maliki, spokesperson of the Saudi-led coalition involved in a war in Yemen, in a statement.

He said that the militia continues to harm the regional and international security through targeting civilian sites, along with civilians of all nationalities.

Al Arabiya TV reported on Monday that Saudi air defense forces shot down two ballistic missiles that were heading toward Jeddah and Makkah.

He warned of strong deterrent action to stop Houthis from committing further violations to international law.