Russian warplanes attacked rebel-held areas in northern Syria for the first time in weeks on Sunday, as Syrian officials said more than 100 people were treated at hospitals for what they allege was a poison gas attack by rebels in the northern city of Aleppo.
Russian military spokesman Maj. Gen. Igor Konashenkov told reporters in Moscow that Russian warplanes destroyed militant positions in northern Syria blaming them for the attack with poison gas on Aleppo.
The latest wave of shelling and airstrikes in northern Syria is the most serious violation of a truce reached by Russia and Turkey that brought relative calm to the country's north for the past two months. The rebels, who have denied carrying out any chemical attacks, accused the government of trying to undermine the cease-fire.
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"The planes of Russia's Aerospace Defense Forces carried out strikes on the detected artillery positions of terrorists in the area, from where the shelling of Aleppo civilians with chemical munitions was conducted late" Saturday, Konashenkov said.
The Britain-based Syrian Observatory for Human Rights and the Thiqa News Agency, an activist collective, said warplanes pounded rebel-held areas west and south of Aleppo city. The airstrikes were the first since the truce went into effect on Sept. 17.
Syria's Arab News Agency, SANA, said Syrian troops pounded rebel positions near Aleppo "inflicting heavy losses among terrorists."
SANA said the alleged chemical attack late Saturday was carried out by "terrorist groups positioned in Aleppo countryside" that fired shells containing toxic gases on three neighborhoods in Syria's largest city.
Konashenkov said earlier that Russian chemical weapons specialists have been dispatched to Aleppo. Russia is a close ally of President Bashar Assad and has intervened in recent years to turn the tide of the civil war in his favor.
"According to preliminary data, particularly the symptoms shown by the victims, the shells that bombarded residential areas of Aleppo were filled with chlorine gas," Konashenkov said.
Syria's forensic medicine general director, Zaher Hajo, told The Associated Press that all but 15 of the 105 people who were treated have been discharged. He said two people who were in critical condition have improved.
The Observatory said 94 people were treated, with 31 remaining in hospitals.
The Britain-based Observatory, which relies on a network of activists and contacts throughout Syria, said the airstrikes hit the Rashideen district on the western outskirts of Aleppo and the village of Khan Touman south of the city.
The truce brokered by Russia and Turkey, which supports the rebels, has been repeatedly violated, but until Sunday there had been no airstrikes.
Syrian state media meanwhile reported that rebels shelled the Christian village of Mahradeh in northwestern Syria, causing material damage but no casualties.