DAMASCUS, Jan. 20 (Xinhua) -- An explosion rocked a bus in the Afrin enclave in northern Syria on Sunday, killing at least three, a war monitor reported.
Nine others were wounded in the blast that ripped through a bus near the Kao Hadad roundabout in the city, said the Syrian Observatory for Human Rights.
The watchdog group said the death toll could likely rise due to the high number of critically wounded people.
The explosion also left big property damaged, the observatory added.
The explosion hit the city on the anniversary of the invasion by the Turkey-backed rebels to the city.
Afrin enclave had been controlled by the Kurdish People's Protection Units (YPG) and other allied militia groups.
Last year, Turkey spearheaded an operation to dislodge the YPG and took control of the city with the help of its allied rebels in northern Syria.
Several explosions have rocked the city since it fell to the Turkey-backed rebels.
Around 350,000 people were displaced from Afrin when the Ankara-backed rebels took control.
