The Syrian military on Sunday said one of its war planes had been downed in the eastern Syrian city of Deir al-Zor during an operation against Islamic state, where the militant group has been under intense air strikes in the past 24 hours.

That was reported by reuters.com.

According to luftwaffeas.blogspot.de, ISIS fighters succeeded to shoot down a SyAAF MiG-21 piloted by Col. Ali Hamza which crashed at Al-Thardah mount area near Deir EzZour AB, the pilot is KIA.

The aircraft is supposed to be operating from Qamishli airport which recently witnessed the deployment of numbers of Su-22, MiG-21 in addition to Mi-17 helicopters.

The jet came down in the Jebel Tharda area which overlooks the government’s Deir al Zor military airport, the Syrian Observatory for Human Rights, which monitors the Syrian conflict now in its sixth year, said.