Attack comes after Trump vowed to pull out US troops after defeating Daesh Targeted a restaurant where US personnel were meeting members of the local militia supported by Washington BEIRUT: A bomb attack claimed by Daesh killed US troops in northern Syria on Wednesday, weeks after President Donald Trump said the group was defeated there and he would pull out all American forces. A US official who declined to be named said four US troops had been killed and three wounded in the blast, which a Daesh-affiliated site said was the work of a suicide bomber. Others said only two had been killed. The US-led coalition fighting Daesh said that "US service members were killed during an explosion while conducting a routine patrol", and that it was still gathering details. Unusually, Turkish President RecepTayyip Erdogan gave his own death toll for the attack, saying it had killed 20 people, including five US troops. Erdogan said he did not believe the attack would impact Trump"s decision to withdraw from Syria. OIR Spokesperson ✔ @OIRSpox U.S. service members were killed during an explosion while conducting a routine patrol in Syria today. We are still gathering information and will share additional details at a later time. 1,903 4:47 PM - Jan 16, 2019 Twitter Ads info and privacy 2,394 people are talking about this The attack, which took place in the town of Manbij, controlled by rebels opposed to Syrian President Bashar Al-Assad, appears to be the deadliest on US forces in Syria since they deployed there in 2015. A Pentagon spokeswoman said only two US troops had previously been killed in action in Syria. There were two additional non-combat fatalities. Last month, Trump made a surprise announcement that he would withdraw all 2,000 US troops from Syria after concluding that Daesh had been defeated there. Trump"s announcement helped trigger the resignation of his defense secretary, Jim Mattis, stunned allies and raised fears of a long-threatened Turkish military offensive against US-backed Kurdish forces in northern Syria. A witness in the city said the attack had targeted a restaurant where US personnel were meeting members of the local militia that Washington backs there. The Syrian Observatory for Human Rights monitoring group said 16 people had been killed, including two Americans. A militia source in north Syria also said two US troops had been killed. Daesh said a Syrian fighter had detonated his explosive vest on a foreign patrol in Manbij. Two witnesses described the blast to Reuters. "An explosion hit near a restaurant, targeting the Americans, and there were some forces from the Manbij Military Council with them," one said. The Manbij Military Council militia has controlled the town since US-backed Kurdish-led forces took it from Daesh in 2016. It is located near areas held by Russian-backed Syrian government forces and by anti-Assad fighters backed by Turkey. One of the witnesses said there was a "heavy" presence of military aircraft over Manbij following the blast, which took place near a vegetable market. Photographs on a local Kurdish news site showed two mutilated bodies, several other bodies lying on the ground with people gathered around them, damage to a building and vehicles, and blood smears on a wall. It was unclear whether the attack might influence Trump’s decision to give more time for the US withdrawal, a conflict he has tired of and described as “sand and death”.