Story highlights At least 11 killed in airstrike, opposition groups say

Russian defense military says its soldiers bombed nine ISIS positions

The international community raises alarms over Moscow's intentions

(CNN) Russian forces bombed targets in Syria for a fourth day despite international concerns over Moscow's intentions in the war-torn nation.

The Russian defense ministry said its soldiers bombed nine ISIS positions Saturday near the terror group's de facto capital in Raqqa.

In the past 24 hours, the air force conducted 20 airstrikes near Raqqa, the ministry said.

Tactical bombers destroyed various militant facilities, including ammunition and oil depots, and all-terrain vehicles, the defense ministry said in a statement.

At least 11 people were killed in an alleged double strike by Russia in Syria's Idlib province, according to opposition groups.

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