The shell pierced through a window of the building in the town of Reyhanli, situated 519 kilometers (323 miles) east of the capital Ankara, on Tuesday, The Associated Press reported.
It ricocheted five times before hitting a wall. An investigation has been launched into the incident.
Turkey has beefed up its military defenses on its border with Syria over the past weeks and stationed tanks, anti-aircraft missiles, and additional troops there.
At least five people were killed after a mortar shell landed from Syria in the Turkish border village of Akcakale on October 3.
On October 4, the Turkish parliament authorized cross-border military action against Syria “when deemed right.”
Turkish Prime Minister Recep Tayyip Erdogan said on October 5 that Turkey was not far from war with Syria due to the cross-border attacks.
“We are not interested in war, but we’re not far from it either,” Erdogan told a crowd in Istanbul.
“Those who attempt to test Turkey’s deterrence, its decisiveness, its capacity; I say here they are making a fatal mistake,” he warned.
Erdogan warned on October 9 that Turkey’s armed forces would not hesitate to strike back in response to any strike on Turkish soil.
He also vowed to take any measure necessary to respond to Syrian threats to Turkish national security, saying, “The requirement of being a state means we must take any measure and be prepared for any possibility.”
Tensions have been running high between Syria and Turkey, with Damascus accusing Turkey — along with Saudi Arabia and Qatar — of backing a deadly insurgency that has claimed the lives of many Syrians, including security and army personnel.
In an interview with the Turkish daily Cumhuriyet in July, Syrian President Bashar al-Assad said Ankara “has supplied all logistic support to the terrorists who have killed our people.”
(Press TV)


