Video emerged on Saturday apparently showing rebels breaking into the sprawling Khan al-Assal compound.

BBC: Rebels 'seize most of Syria police academy'

Russia has welcomed the UN investigation, but argues it should be limited to the Khan al-Assal incident.

BBC: Syria conflict: UK concerns over chemical weapon use

The focus of the inquiry will be on an incident last month in Khan al-Assal, Aleppo province.

BBC: Syria conflict: UK concerns over chemical weapon use

Meanwhile, video was published appearing to show insurgents storming the main police academy building of the Khan al-Assal complex outside Aleppo.

BBC: Syria: Fierce clashes in provincial capital Raqqa

Djibouti has signed a deal with Iceland to build a geothermal plant near the Dantean furnace of Lake Assal, the continent's lowest point.

ECONOMIST: A hot new proposal for ending electricity shortages

Since March, there have been reports of at least four similar attacks, including one in Ateibeh, a contested area near Damascus, and one in Khan al-Assal, a town outside Aleppo.

NEWYORKER: The Thin Red Line