The ISIS terrorist group has burned the biggest archive of its secret documents and data known as “The Blue Archive of ISIS” in Tal Afar, near the northern Iraqi city of Mosul.

An informed Iraqi source in Nineveh Province has said the ISIS has destroyed a large number of its documents including the terrorist group’s secret data by burning its biggest archive, known as “The Blue Archive of ISIS” in Tal Afar in west of the northern Iraqi province.

Speaking to Alsumaria News TV, he added the archive included documents containing secret information about the terrorist group’s accounts as well as judicial and security moves and measures.

According to a Farsi report by the Mehr News Agency, the front cover of the thick folders and notebooks containing the documents and data was blue. They were transferred to a place where they were destroyed by lorries.

Following the beginning of the operations by Iraqi forces to liberate Mosul from the ISIS terrorists, the group has begun destroying its secret information archives for security reasons.

The local source stressed that the ISIS has lodged its Arab and foreign leaders and commanders in regions under its control in Tal Afar and has forced dozens of local people to leave these districts at gunpoint.

Tal Afar is currently one of the last and most important strongholds of the ISIS.