Fighters from the Syrian Democratic Forces, a US-backed Kurdish-Arab alliance, on Sunday seized a military airport from the Islamic State jihadist group in northern Syria, a spokesman said.
The capture of Tabqa airbase comes as the alliance prepares an attack on IS’s de facto Syrian capital Raqa, seeking to effectively surround the city before launching its assault.
SDF forces are also battling for the nearby Tabqa dam, held by IS, which was forced out of service on Sunday after its power station was damaged, a technical source there told AFP.
“The Syrian Democratic Forces have full control of Tabqa military airport and operations to clear and demine are under way in order to secure the airport fully,” spokesman Talal Sello told AFP.
SDF forces entered the airport earlier Sunday, backed by heavy artillery fire and air strikes by the US-led coalition, the Syrian Observatory for Human Rights monitor said.
IS seized the base from government troops in August 2014 and carried out one of its worst massacres there, killing up to 200 government soldiers.
With support from the US-led coalition fighting IS in Syria and Iraq, SDF fighters have inched closer to Raqa, taking territory to the north and east.
At their closest point, they are just eight kilometres (five miles) from the city, to the northeast.
But they are mostly further away, between 18 and 29 kilometres from Raqa.
Earlier this week, US forces airlifted SDF fighters behind IS lines to allow them to launch the Tabqa assault, and on Friday the alliance reached one of the dam’s entrances.
– Tabqa dam faces danger -But the fight for the dam, the biggest in Syria, forced it out of service on Sunday, risking dangerous rising water levels.
“Shelling on the area… that supplies that dam with electricity has put it out of service,” the technical source said.
“The work needed to fix the problem is not possible because there is not sufficient staff available as a result of the intensive shelling in the area of the dam,” he added.
“If the problem is not fixed, it will begin to pose a danger to the dam.”
The SDF’s Sello told AFP there was no imminent danger to the dam, adding it had not been hit in air strikes.
The dam remains under IS control, with SDF progress being hampered by the exposed nature of the terrain, which is also heavily mined, the Observatory said.
IS issued warnings through its propaganda agency Amaq that the dam “is threatened with collapse at any moment because of American strikes and a large rise in water levels”.
But the source at the dam told AFP there had not yet been significant water level increases, though he acknowledged levels would rise if the facility remained out of service.
Earlier this year, the UN’s humanitarian coordination agency OCHA said water levels in the Euphrates had risen 10 metres (33 feet) since late January, in part from heavy rainfall and snow.
But it warned that damage to the dam “could lead to massive scale flooding across Raqa and as far away as Deir Ezzor” province to the southeast.
Any further rises in the water level or damage to the Tabqa dam “would have catastrophic humanitarian implications in all areas downstream”, the UN warned.
More than 320,000 people have been killed in Syria since its conflict began in March 2011 with anti-government protests. DM
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