Sultan Murad Division carry out an exchange with the “Islamic state” and release a number of its members

The Syrian Observatory for Human Rights was informed by intersecting sources that Sultan Murad Division managed to release six of their fighters who were prisoners in the prisons of the “Islamic State” organization in the northern countryside of Aleppo, and the sources confirmed to the observatory that the six fighters were released, but the fighters were released in exchanged of what? Is still unknown.