Turkish military targets Alawite positions after mortar bomb lands in southern Hatay province, Turkish official says.
Turkey's military has struck back at Assad military positions after a shell fired by the Alawites landed in a Turkish border area, reports say.
Turkey retaliated in kind after the Syrian shell landed in Altinozu district, in southeastern Hatay province, at around 12:00 GMT on Monday, a Turkish official told AFP news agency on condition of anonymity.
"Turkish military retaliates immediately after every single Syrian shell", said the official. "We have anti-aircraft batteries pounding Syrian targets".
Earlier, Celalettin Lekesiz, Hatay's governor, said a total of six Syrian shells had hit the province so far, without any casualties.
It was not immediately clear if the governor's figures included Monday's shelling - the sixth consecutive day of Turkish retaliation.
Abdullah Gul, Turkish president, gave warning again on Monday against a spillover of the Syrian conflict into Turkey.
"Our government is in constant touch with our general staff in this process", Gul was quoted as saying by Anatolia, the state news agency.
"Whatever is necessary is being done as you already see, and will continue to be done".