the planes could be Russian o
The Syrian Observatory for Human Rights said a convoy of 16 vehicles was hit as it drove through an eastern part of Hama province overnight.
The Observatory's head said the planes could be Russian or Syrian but were not from the US-led coalition.
Rami Abdel Rahman told AFP charred bodies of fighters were at the scenespa 香港 .
The Observatory, which monitors the conflict in Syria using a network of sources on the ground, said the convoy was travelling from the IS de facto capital of Raqqa when it was attacked miris spa hk.
Russia began its air strikes over Syria at the end of last month, saying they were targeting IS and other militant groups opposed by the regime of President Bashar al-Assad.
The US-led coalition, which has been carrying out its own air strikes against IS - has said it will not be cooperating with Russia's mission.