RAS AL-AYN, Syria 

A civilian was killed Tuesday in a bomb attack in Ras al-Ayn, northeastern Syria, according to security sources.

A bomb-laden motorcycle detonated in the center of Ras al-Ayn, a city near the Turkish border, said the sources, who asked not to be named due to restrictions on speaking to the media.

On Sunday, eight civilians, including children and women, were killed and 10 others were injured as a result of explosion of a bomb-laden motorcycle in a covered vegetable bazaar in Ras al-Ayn.

The local security forces are considering the possibility that the YPG/PKK terror group might be behind the attack near Turkey's southern border.

Ras al-Ayn was liberated from YPG/PKK terrorists last October as part of Turkey's Operation Peace Spring, launched to secure Turkey's borders by eliminating the terror group from northern Syria east of the Euphrates River, aid in the safe return of Syrian refugees, and ensure Syria's territorial integrity.

However, the YPG/PKK terrorists continue attacks in Tal Abyad and Ras al-Ayn districts despite pulling out of areas under a deal reached by Turkey and the US on Oct. 17.

In its more than 30-year terror campaign against Turkey, the PKK -- listed as a terrorist organization by Turkey, the US and EU -- has been responsible for the deaths of nearly 40,000 people, including women, children, and infants. The YPG is the PKK's Syrian offshoot.

*Writing by Seda Sevencan in Ankara