Three Syrian soldiers were killed and six wounded in a Turkish airstrike on military posts in the Aleppo countryside on Tuesday, state media quoted a military source as saying.
Turkish warplanes targeted the posts from 2:37 - 3:00 p.m. local time, the Syrian state TV and news agency reported.
UK-based Syrian Observatory For Human Rights, an opposition war monitor, questioned the total, claiming the Turkish airstrike killed 11 people and saying that it was not immediately clear if they were all Syrian soldiers.
What is Turkey's role in Syria?
Turkey has carried out numerous military operations in northern Syria since 2016, mainly targeting the Kurdish YPG militia, which Turkey officially considers a terrorist organization.
A Kurdish commander in the Syrian Democratic Forces, the US-backed group that helped defeat ISIS, was murdered in a targeted assassination by a drone strike in Syria on July 22 – the latest attempt by Ankara to attack US-backed anti-ISIS forces.
Turkish strikes allegedly killed four other members of a Kurdish security force south of Ayn Issa as well as nine tourists in northern Iraq last July.
Seth J. Frantzman contributed to this report.