(Previous Incident Codes: R1171RS1293)

Between four and five civilians died in the al Sukkari neighbourhood of Aleppo when a six-storey residential building was destroyed, according to sources on the ground – though reports were conflicted as to whether Russian airstrike or regime artillery or helicopters were to blame. Several sources alleged that Russian used phosphorus bombs in the attack.

The Shaam News Network referred to “four dead and several wounded,” while @syria_pulse mentioned five dead, and said that two people were still trapped under rubble as of noon on September 21st.

Aawsat News said that after midnight, shelling destroyed the residential building completely.

Some sources, such as @thiqanewsagency, referenced both “shelling with rockets” and “barrel bombs”. Alquds and Al Jazeera echoed that language.

@RFS_NORTH tweeted that regime helicopters dropped barrel bombs, as did the Step News Agency.

But several independent sources claimed that Russian warplanes were involved. Smart News said the warplanes dropped phosphorus, as did @Syriapost1.

@HalabNEwsN also said the Russian planes dropped cluster bombs.