Process Safety - Blast in ammonia plant

On Saturday, a blast was reported in the ammonia plant of the Nangal fertiliser plant.
It is reported that the saturator tower fell down as a result of the blast. Three people lost their lives and my heart goes out to the bereaved families. A news item in the Hindustan Times indicates that the incident took place at 1140 hrs in the shift conversion section. The gas in the shift conversion section in an ammonia plant will primarily consist of hydrogen.