FROM CNN INTERNATIONAL, NATO is convening an emergency meeting.

Syrian shells landed inside Turkey killing civilians, and PM Recep Tayyip Erdogan released a statement confirming that Turkey has fired on Syrian targets in retaliation.

From the BBC:

Turkey says it has fired artillery against targets inside Syria after Syrian shells killed five people in a Turkish border town.

Turkish territory has been hit by fire from Syria on several occasions since the uprising against President Assad began, but Wednesday’s incident was the most serious.

The shells, fired from Tall al-Abyad in Syria, hit the Turkish town of Akcakale.

The dead are said to include a woman and her three children.