Near-simultaneous attacks believed to have been carried out by drones hit three regime-run oil and gas installations in central Syria, state TV and the Oil Ministry said Saturday. No one claimed responsibility for the attacks, which targeted the Homs oil refinery — one of only two in the country — as well as two natural gas facilities in different parts of Homs province. Fires were extinguished after several hours and maintenance engineers had begun repair work, the refinery head, Haitham Musawkar, was quoted as saying on state media. Syria has suffered fuel shortages since earlier this year amid Western sanctions blocking imports, and because most of the countrys oil fields are controlled by Kurdish-led fighters in the countrys east. State TV said it believes the attacks were carried out by drones and happened at the same time. It said a fire at the Homs oil refinery was soon put under control. The report said the Rayan gas facility and a third installation, also in Homs province, were hit. The Oil Ministry said the attacks damaged some "production units" in the facilities. It said fires were being fought, and that repairs were already underway in some places. Oil officials deemed the attack a “terrorist” act. The refineries cover most domestic demand for diesel, heating fuel, gasoline and other products, industry experts say. The city of Homs and its suburbs have been fully under regime control since 2017. However, some parts of the province near the border with Jordan remain in opposition hands. In June, sabotage attacks damaged five underwater pipelines off the Mediterranean coastal town of Banias in Tartous province. Syrias oil imports dropped in October 2018 and shortages began in early 2019, largely the result of tighter Western sanctions on Syria and renewed US sanctions on key Syrian ally Iran. Before the Syrian conflict erupted in 2011, the country exported around half of the 350,000 barrels of oil it produced per day. Now its production is down to around 24,000 barrels a day, covering only a fraction of domestic needs.