An air strike struck Abu al-Khayr al-Masri in the Syrian province of Idlib on Sunday, based on unconfirmed reports.
The Egyptian is second-in-command to overall al-Qaeda leader Ayman al-Zawahiri, according to BBC News.
Syrian opposition forces, the Local Co-ordination Committees, posted a photo of the car which was targeted for the attack, as stated by them.
The car, in the town of al-Mastuma, was targeted by “international coalition aircraft”, the group said.
Additionally, the Syrian Observatory for Human Rights reported that an al-Qaeda official was killed in a strike, but did not confirm it was Abu al-Khayr al-Masri.
The Egyptian, whose real name is Abdullah Muhammad Rajab Abd al-Rahman, was reportedly released from custody by Iran in 2015 as part of a prisoner swap.
Last year, Abu al-Khayr al-Masri was reported to have given his blessing to a decision by al-Qaeda’s affiliate in Syria, al-Nusra Front, to cut formal ties with the global jihadist network.
The Syrian jihadist with ties broken with al-Qaeda had renamed its name to Jabhat Fateh Al-Sham, as reported by CNN.
According to Ahmad Hasan Abu al Khayr al-Masri, al-Qaeda has embraced the split. The man Masri would replace as an upranking to No. 2 of the leadership position in the terror group, is al Qaeda leader Ayman al-Zawahiri. Zawahiri expressed his opinion on the split in a supportive manner and called for infighting between jihadist groups to end.
Although Jabhat Fateh al-Sham was no longer linked to an external entity, the U.S. still kept it on its list of foreign terrorist groups and continued to target air strikes.
Therefore, in January, Jabhat Fateh al-Sham dissolved itself and formed an alliance with four smaller Syrian jihadist groups called Hayat Tahrir al-Sham. The move seemed to deem an attempt by the group to distance itself from al-Qaeda.
Tahrir al-Sham as since then fought rebel groups for control of the Idlib province in Syria, implying that it was them who had instigated suicide bombs on Saturday against the military in the government-controlled city of Homs.
Although the death of Abu al-Khayr al-Masri is uncertain, the Guardian has stated that he has been killed based off of what jihadists are stating.
The immediate circumstances of Masri’s death were unclear. Video online showed a tan four-door Kia sedan destroyed at a roadside with a large hole in its canopy but its windscreen mostly intact. The location of the attack was unusually far west for a US drone strike.