At least 20 Islamic State (IS) militants were killed on Thursday in a shelling in northern Syria by the Turkish army and air operations from the U.S.-led coalition, the Turkish General Staff said on Friday.

According to the statement, Turkish artillery units shelled the IS targets as coalition warplanes conducted air operations in the region hitting 34 targets of the militant group.

Reports show that at least 20 IS militants were killed and two buildings used by the IS destroyed.

Turkey is set to install new air defense systems in the country's southeastern province of Kilis, as rocket attacks from IS-held regions across the border in northern Syria have killed over 21 in Kilis this year.

source : xinhua