From ABC Australia:
A van filled with gas bottles has exploded outside the headquarters of the Australian Christian Lobby (ACL) in what police have ruled out as a targeted attack.
ACL managing director Lyle Shelton tweeted the incident last night, saying a vehicle had caught on fire outside its office in Canberra just after 9:30pm.
Mr Shelton added that staff were safe, and photos he shared showed a burnt-out van in the car park near the building's entrance.
ACT police confirmed a 35-year-old Canberra man had ignited gas cylinders in the van and caused an explosion, which damaged the vehicle and building.
The man was the only person injured in the incident and walked himself to the nearby Canberra Hospital with serious burns, where he remains in a critical condition.
In a statement, police said their brief questioning of the man revealed his actions "were not politically, religiously or ideologically motivated".