More than 20 Ahrar Al-Sham and Al-Huryah Brigade terrorists have been killed by a Russian airstrike that targeted the research center in west Aleppo.
This has been followed by the Syrian Army storming the area in a rapid attack to liberate the center.
The fall of the center will be a major blow for the militants defending it as it now puts surrounding area under major vulnerability.
The Syrian Army are also advancing in the Jamiyat al-Zahraa area in north-west Aleppo. The Army has so far captured several buildings from militant forces.