On Wednesday, Yemen's Houthis announced that they had used armed drones to attack military positions in southwestern Saudi Arabia. The Houthis routinely launch drones toward Saudi Arabia, as Riyadh has been carrying out an ongoing war in Yemen in support of the internationally-recognized government of the poorest nation in the Middle East.
Over recent months, Houthis have reportedly conducted several major drone attacks on Saudi airports and oil facilities. On 17 August, a Houthi drone attack on a Shaybah oil field controlled by Saudi Arabia reportedly caused a fire at a gas plant. In response, the Saudi-led coalition targeted Houthi positions in northern Yemen.
Yemen has been engulfed in an armed conflict between government forces led by President-in-exile Abdrabuh Mansour Hadi and the armed political opposition Houthi faction movement for several years.
The Saudi-led coalition has been carrying out airstrikes against the Houthis at Hadi's request since March 2015. The conflict has resulted in a massive humanitarian crisis in the poverty-stricken country.