Exactly one hour ago, five Russian airstrikes struck the al-Moroor district of Raqqa city, the self-proclaimed capital of the Islamic State.

This neighbourhood lies at the very heart ar-Raqqah and is known to house the families of ISIS members, thus making it an Islamic State stronghold.

No details were given on the goals of the air raid.

Last week, a similar night air raid was conducted by the Russian Air Force.

Unlike other cities, Raqqa did not witness widespread anti-government demonstrations at the beginning of the conflict in 2011.

Jihadist forces captured the city during the spring of 2013; nevertheless, many residents are said to spy on behalf of the Syrian Government.

This in turn notifies the Syrian/Russian Air Forces about ISIS movements inside the city, thereby paving the way for airstrikes on Islamic State insurgents.