Two patients remain in a critical but stable condition after an explosion in Auckland central on Friday, Stuff reports. The blast, which injured five people, is believed to have been caused by a gas cooker explosion on a building site on Pakenham St West at about 6.30am. A striking firefighter, who was one of the first responders, described tending to patients who had skin and clothes hanging off them. The construction site reopened on Monday morning for the first time since the incident.