There was no immediate claim of responsibility for the reported attack.
Islamic State militants are active in the region.
Technicians from the Syrian Petroleum Ministry are working to fix the pipeline, SANA added.
The pipeline transfers 2.5 million cubic metres of gas per day to the plant that feeds electricity stations, the agency said.
The Syrian Observatory for Human Rights, a war monitor, confirmed the attack on the facility, saying it is not clear yet if it had been mounted by Islamic State.
Earlier this month, the radical group ambushed government forces in rural Homs, killing six soldiers, according to the watchdog.
In recent months, Islamic State has suffered military setbacks and territorial losses in Syria and neighbouring Iraq.
The extremist group heavily relied on revenues from energy-rich areas under its control in order to finance its operations.
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Islamic State militants are active in the region.
Technicians from the Syrian Petroleum Ministry are working to fix the pipeline, SANA added.
The pipeline transfers 2.5 million cubic metres of gas per day to the plant that feeds electricity stations, the agency said.
The Syrian Observatory for Human Rights, a war monitor, confirmed the attack on the facility, saying it is not clear yet if it had been mounted by Islamic State.
Earlier this month, the radical group ambushed government forces in rural Homs, killing six soldiers, according to the watchdog.
In recent months, Islamic State has suffered military setbacks and territorial losses in Syria and neighbouring Iraq.
The extremist group heavily relied on revenues from energy-rich areas under its control in order to finance its operations.
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