BEIRUT/ISTANBUL - Air raids believed to have been carried out by US-led forces hit three makeshift oil refineries in northern Syria as part of a campaign against Islamic State, a monitoring group said.
The United States has been carrying out strikes in Iraq since August 8 and in Syria, with the help of Arab allies, since Tuesday, with the aim of "degrading and destroying" the militants who have captured large areas of both countries.
The Britain-based Syrian Observatory for Human Rights said the latest air strikes in northern Syria occurred shortly after midnight in Raqqa province.
Rami Abdelrahman of the Observatory said that destroying the makeshift refineries has led to a sharp increase in the price of diesel, adding that in Syria's northern Aleppo province the price has more than doubled.
"The price went up from 9,000 Syrian pounds to 21,000 in Aleppo. Hitting these refineries has affected ordinary people, now they have to pay higher prices," he told Reuters.
A medium-sized makeshift refinery, mounted on trucks, can refine up to 200 barrels of crude a day into fuel and other products.