The US military said on Monday it carried out a strike in the Syrian province of Idlib against a leader of the jihadist group Hurras al-Din, close to al-Qaeda.
"Abu Hamzah al-Yemeni was traveling alone on a motorbike during the strike," said the central command of the American army (Centcom) in a press release, ensuring that there were no indications of civilian casualties.
"The removal of this senior leader will disrupt al-Qaeda's ability to carry out attacks against American citizens, our partners, and innocent civilians around the world," Centcom said.
US authorities have a "high degree of confidence" that the strike, carried out using a drone, killed the jihadist leader, according to an official familiar with the operation quoted by CNN.
This is the second US operation in June targeting a senior jihadist official in Syria.
American forces had already captured Hani Ahmed Al-Kurdi, a leader of the Islamic State (IS) group on June 16 during a raid in the province of Aleppo.
They also killed IS leader Abu Ibrahim al-Hachimi al-Qurachi during an operation in Atme, a region of Idleb province, on February 3.