Explosions were heard as a freight truck burst into flames at a set of Napier traffic lights.
Two fire appliances were called to Taradale Rd in Onekawa on Saturday afternoon after the fire sparked in the first trailer, according to a Napier fire officer.
Thick black smoke billowed into the air and could be seen for kilometres as fire officers worked quickly to maintain the blaze.
The intense heat caused two of the truck's tyres to explode, with one Napier resident saying she felt it from her couch.
Resident Joseph Dudding said he was visiting a family member at a house on Taradale Rd when he noticed flames outside.