The Palestinian Almanar weekly quoted informed sources as saying that the size of these networks and the number of their members varies depending on who is sponsoring them.
The sources, who asked to remain anonymous in fear of their life, added that over 85% of these criminals are non-Syrians who have come from different continents and have been recruited by Saudi and Qatari spies and later trained in special training camps in Turkey.
The weekly added that these networks are receiving Israeli made weapon cargos paid by Persian Gulf Arab Sheikhs.
The sources also said that these terrorist cells and groups are paid salaries for operations in Syria.
The Syrian crisis began in March 2011, and many people, including large numbers of soldiers and security personnel, have been killed in the violence.
The Syrian government says that the chaos is being orchestrated from outside the country, and there are reports that a very large number of the militants are foreign nationals.
In an interview broadcast on Turkish television in April, Syrian President Bashar al-Assad said that if the militants take power in Syria they could destabilize the entire Middle Eastern region for decades.
“If the unrest in Syria leads to the partitioning of the country, or if the terrorist forces take control… the situation will inevitably spill over into neighboring countries and create a domino effect throughout the Middle East and beyond,” he added.