The Turkish military have deployed artillery and anti-air systems on the Syrian border, Interfax-Azerbaijan reports.
Ankara says that Syrian forces have attacked the border districts of Turkey during pursuits of rebels. Two Turks were reportedly injured.
Turkey set artillery at the Tal al-Abyad checkpoint.
Turkey demands the resignation of Syrian President Bashar al-Assad. Syrian officials say that Turkey trains militants in south-eastern territories and helps them infiltrate the country.