Airstrikes on a convoy of the Islamic State (ISIS) group killed at least 40 jihadists in central Syria over the weekend, a monitoring group said Sunday, according to AFP.
The Britain-based Syrian Observatory for Human Rights said unidentified warplanes hit the 16-vehicles motorcade overnight between Saturday and Sunday in Hama province, killing the jihadists.
The Observatory, which monitors the war in Syria and has a network of sources on the ground, was not immediately able to say whether the raids were carried out by Russian warplanes or Syrian regime ones.
"But they don't belong to the coalition led by Washington," said Observatory chief Rami Abdel Rahman.
Charred bodies of ISIS fighters were found at the scene, he added.
Syrian regime aircraft bombard almost daily the eastern countryside of Hama where ISIS has positions.
Abdel Rahman said the convoy was hit as it was heading from the self-declared ISIS capital of Raqa in northern Syria to the Hama countryside.
Russia, a key ally of the Syrian regime of President Bashar Al-Assad, has been carrying out a campaign of airstrikes against his opponents since September 30, and last week fired cruise missiles into Syria from the Caspian Sea.
Moscow claims it is striking ISIS and other "terrorists", but Washington and its allies accuse Russia of targeting moderate rebels.
AFP contributed to this report.