(JPost) — Turkey’s military struck targets inside Syria on Wednesday in response to a mortar bomb fired from Syrian territory which killed five Turkish civilians, Turkish Prime Minister Tayyip Erdogan’s office said in a statement.

“Our armed forces in the border region responded immediately to this abominable attack in line with their rules of engagement; targets were struck through artillery fire against places in Syria identified by radar,” the statement said.

“Turkey will never leave unanswered such kinds of provocation by the Syrian regime against our national security.”

The mortar bomb fired from Syria landed in a residential district of the southeastern Turkish town of Akcakale earlier Wednesday, killing a woman and four children from the same family and wounding at least eight other people.