There are grave fears for the occupant of a Queensland townhouse destroyed by a massive explosion and then a fire on Wednesday.

First responders were met with large plumes of dark smoke as they rushed to the fire in Murrumba Downs, north of Brisbane, about 1pm on Wednesday.

Police evacuated neighbouring properties and closed off surrounding streets while fire crews worked to extinguish the blaze, which took two hours to bring under control.

The property was completely destroyed as a result of the blaze, which followed reports of a blast heard several suburbs away. Debris from the ruined townhouse was strewn across the surrounding area.

Police have declared a crime scene and investigations were continuing on Thursday. They said they were yet to make contact with the person who lived at the property.

No injuries were reported to emergency services at the time of the incident, although one person from a neighbouring unit was transported by paramedics with emotional distress.

The cause of the blaze is so far unknown.

Anyone with information is urged to contact police.

-with AAP

The post Grave fears for resident after townhouse blast appeared first on The New Daily.