UPDATE, 6AM: A woman remained in a critical condition last night and a colleague suffered minor burns from an explosion at the Aurizon railway workshops site at Redbank.
A 33-year-old woman and a male colleague employed by Aurizon were working on an electrical substation when the woman sustained severe burns from an electric shock.
It is believed the woman received burns to 50% of her body and was taken to the Royal Brisbane Hospital in a critical condition.
She remained in a medically induced coma last night.
The male's injuries are believed to have been caused by flames emanating from the substation.
He was also taken to the Royal Brisbane Hospital with minor burns to his hands and was released yesterday afternoon.
Two ambulances left the workshops at midday.
Ipswich police senior sergeant Gareth James said the incident was initially reported to emergency services as an explosion at 11.20am.
"Police have attended after receiving information from ambulance and fire brigade. It appears an electrical incident has occurred at the workshops," he said.
"Workplace health and safety and the Office of Electrical Safety are attending and investigations are continuing.
"It was reported as an explosion."
An Aurizon spokesperson confirmed there was a safety incident at the Redbank site.
"Two of our employees have been taken to hospital with suspected burns," the spokesperson said.
"Aurizon is investigating the incident and will liaise with the appropriate authorities."
The substation was within a brick building facing Weedman St, adjacent to the site's entrance.
Police and investigators were seen entering the building after the incident.
Police remained on scene into the afternoon yesterday.
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