A rocket attack on a crowded market in a town held by Turkey-backed opposition fighters in northern Syria killed 15 people and wounded dozens, an opposition war monitor and a paramedic group said.
The attack on the town of al-Bab came days after a Turkish airstrike killed at least 11 Syrian troops and US-backed Kurdish fighters. The Syrian Observatory for Human Rights, an opposition war monitor, blamed Syrian government forces for Friday's shelling, saying it was in apparent retaliation for the Turkish airstrike.
The Observatory said three children were among the 15 killed, and that there were more than 30 wounded. The opposition's Syrian Civil Defence, also known as White Helmets, had the same death toll but said 28 people were wounded. The paramedic group said its members evacuated some of the wounded and the dead bodies.
"This is the worst massacre committed by regime forces since the battles stopped between the regime and the opposition," said the Observatory's chief Rami Abdurrahman, referring to a cease-fire in March 2020 that ended a wide Syrian government offensive on rebel-held areas.
The US-backed Kurdish-led Syrian Democratic Forces said in a statement that its fighters did not shell al-Bab. There was no comment from the Government.