Bomb blast kills 40 people in Syria

At least 40 civilians have been killed in a fuel tanker bomb blast in a northern Syrian town controlled by Turkish-backed opposition fighters, according to Turkey's defence ministry.

The ministry said in a Twitter post that another 47 people were wounded in Tuesday's explosion in a crowded street of Afrin.

There was no immediate claim of responsibility but Turkey blamed the attack on the Kurdish People's Protection Units (YPG).

Ankara accuses the YPG of being the Syrian offshoot of the outlawed Kurdistan Workers' Party (PKK), which has waged an armed rebellion against Turkey since 1984. The PKK is considered a "terrorist group" by Ankara and many Western capitals.

Syrian activists said the blast on Tuesday burned several people to death, including some who were stuck inside their vehicles.

In a hospital yard, 10 charred bodies were covered with blankets next to ambulances. In an ambulance nearby, two charred bodies were inside, according to videos and photos circulated by activists.

The blast set several cars and shops on fire and tanker trucks were used to fight the blaze.

Amid fears the death toll could rise, activists in northern Syria urged people in the Afrin area to head to hospitals and donate blood.

Dhaka/Mukul