A man injured after a spark in a Hawke's Bay sleepout in the middle of the night caused a barbecue gas bottle to explode has been discharged from hospital.
The spark ignited a raging fire at the property about 2.10am on Thursday, which the man was lucky to escape, firefighters say.
Hawke's Bay area commander Ken Cooper said the cause of the fire was not known and was being investigated.
The fire, at an isolated rural property sleepout on Kaiwaitau Rd, Mahia, needed five fire trucks to quell the flames.
There was no smoke alarm in the sleepout, and the property had significant damage, Cooper said.