The Asia News Website reported on Tuesday that Moshari al-Anzi, a Saudi heart surgeon and one of the first people who came to fight in the more than two-and-half year bloody conflict, killed himself in a suicide attack on the Day of Ashura (November 13).
The website quoted sources close to the militants that Anzi, who picked the name Abu Samak al-Jarzawi worked in field hospitals during his presence in Syria.
According to the source, he had applied before to take part in the battles but his requests were denied because of the need for doctors.
However he managed to steel a bomb-laden car during an offensive against Syrian soldiers near Aleppo and killed himself.
He is the second Saudi doctor who has died in Syria, fighting alongside other foreign militants.
Many from Europe, the Middle East and North Africa have been influenced by Al-Qaeda and other extremist groups to enter Syria and fight to overthrow the Syrian government.
Experts believe lack of true information published by mainstream media, and the fact that the whole war is supported by western and regional countries, has given Al-Qaeda an upper hand in feeding people with false information.
Many of the militants in Syria believe that they are fighting in a holy war while Al-Qaeda has announced seeking to establish a state of its own in Syria.
The crisis in Syria started in March 2011, when pro-reform protests turned into a massive insurgency following the intervention of western and regional states.
The unrest, which took in terrorist groups from across Europe, the Middle East and North Africa, has transpired as one of the bloodiest conflicts in recent history.
According to the United Nations, more than 100,000 people have been killed and millions displaced due to the turmoil that has gripped Syria for over two years.