The world's largest oil processing facility was hit by a Houthi drone strike in Saudi Arabia

Yemen's Houthi rebels claimed responsibility for drone attacks on the world's largest oil processing facility in Buqyaq, Saudi Arabia, and another major oilfield operated by Saudi Aramco in the country on Saturday.

The strike started major fires; Saudi Arabia said it had brought the blazes under control, though it was unclear if there were injuries related to the attack. It also remains unclear how much damage was caused by the strikes and the subsequent fires. Smoke from the fires following the attack were reportedly visible from space.

Houthi military spokesman Yahia Sarie said the rebels launched 10 drones in a coordinated attack and warned more strikes could come if the years-long Yemeni civil war, in which Saudi Arabia backs a coalition fighting the Iran-backed Houthis, does not stop soon.

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The strikes come as Saudi Aramco has accelerated plans for an initial public offering to as early as this year. They are likely to heighten already boiling tensions in the Gulf Region, as the U.S. and Iran continue their standoff over the 2015 nuclear pact, The Associated Press reports. Read more at The Associated Press and Reuters.