AhlulBayt News Agency (ABNA): According to the local military council, the blast occurred near a patrol of the international coalition in the city.
Eyewitnesses in Manbij told Sputnik that the explosion took place near a cafe where the leaders of the council and guests from a delegation, "whose identity has not yet been established", had gathered.
"Six civilians were killed and 19 others wounded as a result of an explosion in the centre of the city of Manbij, while a US military patrol was passing", Al Jazeera said.
The death toll was later revised up to 9 killed, according to the broadcaster.
ISIS has reportedly claimed responsibility for the attack.
According to conflicting media reports, the explosion claimed the lives of between 2 and 5 US soldiers. A military helicopter allegedly landed near the scene in order to rescue survivors.
Following the incident, Kurdish-led the Syrian Democratic Forces militia claimed that it would help set up a safe zone in northern and eastern Syria under "international guarantees".
