Fresh doubts have emerged over the safety of the Saudi Arabian Grand Prix after an explosion at a petrol facility close to the Jeddah Corniche Circuit. Yemeni rebels have claimed responsibility for causing explosion, which is reported to have been triggered by a missile attack.
The blast could be heard during the first Formula 1 practice session of the weekend on Friday, before a fire broke out at the Aramco site in Jeddah. Thick black smoke has been billowing out of the facility since, and is clear to see from many vantage points all across the city.
It could even be seen on TV, with the smoke captured by the cameras as they showed live footage of the final minutes of the practice session. F1 reporter Chris Medland wrote on social media that the sport's bosses are "awaiting further information from the authorities regarding what has happened at the Aramco facility".