Xeber 24 news website reported that the Syrian Democratic Forces (SDF) have found and arrested Niru Sariva who was ISIL's Portuguese commander in the city of Baghouz in Eastern Deir Ezzur.
It noted that Sariva was the commander of ISIL's foreign militants battalion and was in charge of abducting and executing Westerners in Syria.
The 33-year-old Sariva who had been residing in London before joining the ISIL was also one of the most important elements of the ISIL in exercising the terrorist group's forced recruitment plans.
In a relevant development last week, a notorious Belgian member of the ISIL terrorist group who had executed over 100 people in the city of Raqqa was captured in the same city on Saturday.
The Arabic-language website of Russia Today cited Belgian De Morgen newspaper as reporting that the SDF arrested Anwar Hadoushi nom de guerre Abu Soleiman al-Belgiki and known as ISIL's executioner was captured in Raqqa.
The newspaper said 35-year-old Abu Soleiman has decapitated over 100 people in Raqqa.
Meantime, Hadoushi is also said to have been the main financial supplier of the terrorist attacks in Paris and Brussels.