Residents and civil defence members inspect a damaged building after an airstrike on the rebel-held Tariq al-Bab neighbourhood of Aleppo.

A Syrian rebel-run first responder service says an airstrike has hit its training center in northern Syria, killing five personnel.

The Syrian Civil Defense, which conducts search and rescue operations in rebel-held areas, says the attack took place in the town of Atareb, west of the city of Aleppo, on Tuesday morning.

The organization, also known as the White Helmets, has received global praise for its rescue operations in Syria.

The Britain-based activist group Syrian Observatory for Human Rights has confirmed the strike. The Observatory, a monitoring group that relies on a network of activists inside Syria, also reported that separately from the attack on White Helmets, pro-government forces also launched two rockets into Atareb on Tuesday.

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