ISTANBUL (Reuters) - Three rocket shells fired from Syria hit the Turkish border town of Kilis on Tuesday (Aug 23) and Turkey's military fired back in response, broadcaster NTV cited the Turkish armed forces as saying.
It was not immediately clear if there were any casualties.
Earlier on Tuesday, two mortar shells fired from Syria hit the Turkish border town of Karkamis, around 80km east of Kilis, and the Turkish army retaliated by hitting Islamic State in Iraq and Syria (ISIS) targets.
The military fired 40 shells at four ISIS targets in northern Syria, NTV said.
The two mortar shells, which hit the town of Karkamis but did not cause casualties, were apparently fired during clashes between Syrian rebels and ISIS militants in northern Syria, state-run Anadolu Agency said.
Karkamis neighbours the Syrian town of Jarablus, which Turkish-backed Syrian rebels are preparing to attack and seize from Islamic State, according to a senior rebel official, a move that would frustrate Kurdish hopes to expand there.
The mortar shells hit the garden of a property linked to a mosque in Karkamis after striking power lines, Anadolu said. Security forces subsequently sealed off the area and warned people over loudspeaker to stay at home, it said.
On Monday, Turkey's military launched howitzer attacks on Islamic State while artillery pounded Kurdish YPG militants in Syria, whom Ankara sees as an extension of its own Kurdish insurgency.