ISTANBUL — A Turkish news agency says Turkish shelling and airstrikes by the US-led military coalition killed 27 Islamic State militants in Syria.

Citing military sources, the state-run Anadolu agency said the militants were killed Sunday as they were about to fire rockets toward Turkey. The Turkish border town of Kilis has been pummeled in recent months by rocket fire from ISIS-held territory in Syria.

International coalition war planes began hitting ISIS targets inside Syria in September 2014. Turkey allows coalition jets to use its Incirlik air base, but doesn’t regularly participate in coalition airstrikes.

Turkey has suffered multiple bombings in recent months linked to ISIS or Kurdish militants. The military has cracked down on Kurdish rebels in the southeast and its jets periodically bomb Kurdish militiamen in Iraq.

Over the weekend, ISIS launched an offensive against government forces in eastern Syria and captured several buildings, including a hospital, in clashes that left more than two dozen people dead on both sides. Deir el-Zour, near the border with Iraq, is split between government forces and ISIS fighters. Government-held areas have been under a siege by the extremists.