Russia began strikes in support of Syrian President Bashar al-Assad on September 30, over a year after a US-led coalition began strikes in the country against the Islamic State group.

Russian air strikes have killed more than 1,000 civilians in Syria since they began nearly four months ago, a monitor said Wednesday.

The raids, which started on September 30, have killed 1,015 civilians, including more than 200 children, the Britain-based Syrian Observatory for Human Rights said.

The group, which relies on a network of sources on the ground for its reports, said the strikes had also killed 893 ISIS fighters, and 1,141 other opposition militants, including members of Al-Qaeda affiliate Al-Nusra Front.

The total toll of 3,049 represents an increase of nearly 700 deaths in just three weeks.

Russia is a staunch ally of the Syrian government and has coordinated its strikes with Damascus, saying it is targeting ISIS and other “terrorist” groups.

But activists and rebels accuse Moscow of focusing more on moderate and Islamist opposition fighters than ISIS.

Russia has previously denounced accusations that its raids have killed civilians as “absurd” and said claims by rights groups of such deaths were made up of “cliches and fakes”.

The Observatory says it differentiates between strikes by Russia, US-led coalition warplanes and the Syrian regime based on the type of aircraft and the munitions used.

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