UN report finds Syrian air force plane carried out sarin gas attack that killed at least 83

A Russian-built plane used by the Syrian air force conducted a sarin gas attack in the spring that killed at least 83 civilians and sparked a retaliatory US strike, a UN investigation has found.

The latest report by the Commission of Inquiry on Syria also said US forces failed to take "all feasible precautions" to protect civilians in attacking alleged terrorists in Aleppo in March, destroying part of a mosque complex.