The casualty figure, provided by locals and rescuers, is preliminary and is expected to rise.
The blast struck an entrance to the city, killing civilians including children, the UK-based Syrian Observatory for Human Rights says.
Turkey’s interior minister Suleyman Soylu says Syrians went back to their homes thanks to peace in Afrin and other areas after Turkish military operations.
A local musician is trying to preserve his cultural values through music as Monday marks the one year anniversary since Afrin was liberated from the YPG terror group as part of Turkey's Operation Olive Branch.
Turkey liberated Afrin from the YPG almost a year ago. With the region free of terror an important source of income for local farmers – olive oil – is enjoying a revival.
In a televised interview, Turkey's President Erdogan also floated the idea of visiting Washington after March, adding that the European Council’s decision on whether ascension talks with Turkey should be shelved “has no bearing”.
Turkey has spent more than $32 billion from its own resources to aid and shelter refugees since the beginning of the Syrian civil war.
Today marks the one year anniversary of Turkey's Operation Olive Branch aimed to clear terrorists affiliated with the PKK from the Afrin region.
The bomb was reportedly planted on a public bus and injured nine others in northern Syria.
Turkey's President Recep Tayyip Erdogan says the US president, in a phone call with him, reaffirmed the US troop pullout from Syria as well as "a 20-mile [32km] security zone along the Syrian border... will be set up by us [Turkey]."
More than 20 people have also been wounded in the attack that targeted a busy vegetable market in the Syrian town of Afrin, that has frequently been targeted by YPG attacks.
"Turkey has gained historic results against terror groups, gangs and drug dealers, and any other action targeting peace in our term since 2002" - Turkish President Erdogan.
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