Great Britain jets began carrying out airstrikes against Islamic State interests in Syria on Thursday, mere hours after lawmakers approved a plan to expand their military’s actions.

The fighter jets successfully attacked an ISIS-controlled oil field about 35 miles inside the country’s eastern border with Iraq, the country’s Ministry of Defense said in a news release.

The jets targeted six specific points within the Omar oil field, which is one of the Islamic State’s most significant holdings. It accounts for more than 10 percent of the potential oil income for the terrorist group, which is known as Daesh in some circles.

“Carefully selected elements of the oilfield infrastructure were targeted, ensuring the strikes will have a significant impact on Daesh’s ability to extract the oil to fund their terrorism,” Ministry of Defense officials said in the news release.

The ministry said the aircraft’s pilots ensured there were no civilians near the targets.

According to the BBC, the bombings came just a few hours after members of British parliament voted 397-223 to back their prime minister’s plan to approve carrying out airstrikes in Syria. Previously, Great Britain had only been executing airstrikes in Iraq. Those began last year.

But French leaders had asked for more help in the fight against ISIS after gunmen and suicide bombers killed 130 people during the Nov. 13 terrorist attacks in Paris, Reuters reported.