A Syrian photojournalist working for Turkey's state-run Anatolia news agency in Syria has been killed in a car bomb attack, the media outlet said Friday.

Saleh Mahmoud Laila was killed along with at least 19 others in the attack Thursday on a market in the town of Hraytan in Aleppo province suspected to have been carried out by Islamic State (IS) militants, Anatolia said.

It said Laila, 27, had already survived an air strike last July carried out by forces of President Bashar al-Assad that left him with multiple burns and required hospitalisation in Turkey.

President Recep Tayyip Erdogan said in a message that he had learnt of Laila's death "with sadness" and passed his condolences to the photographer's family and the news agency itself.

He said that Laila had worked with "complete understanding and devotion" and his images would be remembered with respect.

The agency paid tribute to Laila's work in "difficult conditions" to show the world what was happening in Syria.

According to the Committee to Protect Journalists (CPJ), Syria is the most dangerous country in the world for journalists.

Since the conflict began in 2011, at least 85 journalists have been killed by crossfire, on dangerous assignments, or murdered, it said.