KILIS, TURKEY (REUTERS) - Turkey is responding to rocket attacks on one of its border towns by launching strikes against ISIS targets in northern Syria, Prime Minister Ahmet Davutoglu said.

The Islamic State in Iraq and Syria (ISIS) has been firing rockets at the town of Kilis, along the border between Turkey and Syria. It is currently home to more than 100,000 Syrian refugees, and is the frequent target of shelling by ISIS militants who control the territory on the Syrian side of the border.

Twenty-one people in Kilis have reportedly been wounded over two days of cross-border incidents.

Turkish PM Davutoglu told his ruling AK party that the government is responding with counter-attacks against ISIS in northern Syria.

"I wish a speedy recovery to our wounded and I express my sympathies to the people of Kilis. And I salute the people of Kilis from Ankara," Mr Davutoglu said on Tuesday (April 12).

But there's no end in sight to the fighting with ISIS. The militants recently released video saying they have recaptured their stronghold of al-Rai along the Turkish border from a coalition of rebel groups.

Turkey is an outspoken critic of Syrian president Bashir al-Assad, but it is also a partner in the coalition efforts to topple ISIS. Ankara also supports some of the Syrian rebel fighters, in the conflict that is now in its sixth year.