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A man rides a bicycle past damaged buildings in the Damascus suburb of Jobar October 28, 2014. Picture taken October 28, 2014. REUTERS/Badra Mamet (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT) Image Credit: Reuters

Beirut: Daesh militants have attacked an oil and gas field in Syria, killing at least 30 pro-regime forces and security guards, a monitoring group said on Wednesday.

The Syrian Observatory for Human Rights said the attack was launched on Tuesday night and fighting continued through the night.

“Daesh managed to control parts of the field,” the Britain-based group said after the assault at Shaer, in Homs province.

An unknown number of militants were also killed, Observatory director Rami Abdul Rahman said.

He said fighting resumed in the area on Wednesday morning after several hours of relative calm, with the army bombing the region.

The Syrian Al Watan daily, which is close to the government, acknowledged the Daesh advance, saying the group had taken control of “two wells and a hill” after fierce clashes.

The newspaper reported dead and injured on both sides without giving a specific toll.

“Army forces, backed by the National Defence Forces [pro-regime militia] are trying to retake control of the field,” the newspaper added.

An earlier attack by Daesh fighters on Shaer in July left 270 people dead, including soldiers and pro-regime fighters.

Most were reportedly executed at gunpoint after being taken prisoner.

The site is near the famed archeological site of Palmyra.

Daesh has targeted oil and gas facilities in Iraq and Syria as it seeks funds for its fight to seize territory for a self-proclaimed Islamic “caliphate”.