An area U.S. officials say was an ISIL vehicle staging center near Abu Kamal, Syria, is seen before (inset) and after it was struck by U.S. aircraft
An area U.S. officials say was an ISIL vehicle staging center near Abu Kamal, Syria, is seen before (inset) and after it was struck by U.S. aircraft in a U.S. Department of Defense handout picture provided September 23, 2014. The United States told the United Nations on Tuesday it led airstrikes against Islamic State militants in Syria because President Bashar al-Assad's government had failed to wipe out safe havens used by the group to launch attacks on Iraq. REUTERS/US Department of Defense/Handout Reuters

In the third night of US air assault against Islamic State (ISIS) inside Syria, oil refineries controlled by the militant group was targeted to cut off its funding sources. Modular refineries, mostly located in Mayadeen, lying in the eastern province of Deir el-Zour, were attacked by the U.S. Airfore. The operation killed 19 people, including some civilians. This was informed by the UK-based Syrian Observatory for Human Rights, reported Fox News.

Photos Released

The Business Insider in a report said the U.S. Department of Defence released some images of the coalition attacks on ISIS-controlled oil refineries in eastern Syria. According to Pentagon's Press Secretary Rear Admiral John Kirby, 16 fighter jets participated in the air strikes, and dropped 41 precision-guided bombs on a dozen of modular refinery targets in Syria. Pentagon is reportedly spending approximately $7-10 million a day.

The Central Command, in a statement said the initial assessment is that the attack on refineries was successful. It was on Wednesday, the coalition forces began air strikes on oil targets. So far 200 air strikes have been conducted, since the day U.S. declared war against the extremist group. The U.S. also bombarded checkpoints, compounds and vehicles of ISIS in northern and eastern Syria and also at Turkish and Iraqi borders.

Most of the oilfields in Syria were captured by ISIS this year. They made it their lifeline to sustain by raising money to fight, by selling oil in the black market. Ovetall, ISIS Controls 11 oil fields in Iraq and Syria and the average income is about more than $3 million a day. Meanwhile, Kurdish forces in northern Syria also had success in pushing back the advancing army of ISIS, in overnight clashes. The ISIS militants were aiming to capture the border town of Kobani and that led to the displacement of more than 100,000 Kurds, who fled to Turkey.

France Joining Air Strikes

Meanwhile, French defence minister, Jean-Yves Le Drian indicated that France might join the air strikes in Syria. Paris had joined the U.S.-led coalition in bombing ISIS positions in Iraq, but stayed away from neighbouring Syria. Drian said France's priority was Iraq but did not dismiss adding Syria to the list of targets. Meanwhile, the UK is seeking the mandate of Parliament to join air strikes in Iraq.