ANKARA (Reuters) - The Turkish army is retaliating with artillery fire at Syrian government targets in Syria after an airstrike killed 22 Turkish soldiers in the northwestern Idlib province, two Turkish security officials said on Friday.

“All known” Syrian government targets are under fire by Turkish air and land support units, Turkey’s communications director Fahrettin Altun said separately on Friday, according to state-run Anadolu news agency. Turkey has decided to “respond in kind” to the attack by the Syrian government, Altun added.