The US has said it killed a senior al Qaeda commander who was plotting attacks on the West in an airstrike in Syria.
Iran's Fars news agency reported that Sanafi al Nasr was killed after a car in which he was travelling was hit near al Dana, west of Aleppo.
Photos showing the dead bodies of the 30-year-old and two other senior militants killed in the same attack were disseminated by al Qaeda-linked rebel group al Nusra Front, according to Fars.
Al Nasr has been a joint commander of al Nusra since his arrival in Syria in 2013, according to the UN.
His death was widely reported on Saturday but the Pentagon has now put out a statement saying its jets launched the strike.
A Department of Defense statement said: "On October 15, Coalition forces conducted an airstrike in northwest Syria that killed Abdul Mohsen Adballah Ibrahim al Charekh, aka Sanafi al Nasr, a Saudi national and the highest ranking leader of the network of veteran al Qaeda operatives sometimes called the 'Khorasan Group'.
"Al Nasr was a long-time jihadist experienced in funnelling money and fighters for al Qaeda. He moved funds from donors in the Gulf region into Iraq and then to al Qaeda leaders from Pakistan to Syria.
"He organized and maintained routes for new recruits to travel from Pakistan to Syria through Turkey in addition to helping al Qaeda's external operations in the West.
"Al Nasr previously worked for al Qaeda's Iran-based facilitation network. In 2012 he took charge of al Qaeda's core finances before relocating to Syria in 2013. ?Al Nasr is the fifth senior Khorasan Group leader killed in the last four months."
The Khoresan Group is said by the US to be a group of al Qaeda operatives who have set up terror training camps in Syria from which to launch attacks on the West.
The Pentagon claims it is made up of several dozen al Qaeda veterans from Afghanistan, Pakistan, North Africa and Chechnya who were sent to Syria by their leader Ayman al Zawahiri to "recruit Westerners to conduct operations."
A Twitter account that claims to translate the posts of al Nusra said that al Nasr's vehicle had been hit by "Crusader Coalition Airplanes".
Fars said that at around the time the US launched its strike, Syrian armed forces and Hezbollah fighters, "with Russia's air backup" were operating "across the Aleppo province".
Al Nasr was one of the US's most wanted men, having been designated a "Global Terrorist" by an Executive Order in 2014.
Secretary of Defense Ash Carter said: "This operation deals a significant blow to the Khorasan Group's plans to attack the United States and our allies, and once again proves that those who seek to do us harm are not beyond our reach."
According to the Long War Journal, the death of al Nasr has been reported by al Nusra in the past.
