The cause of a house fire in Matua this morning is under investigation.

Three fire trucks were sent to the fire on Sunny Bay Rd after receiving a call at 5.19am.

“There was a fire in a wall which had gone into the ceiling void of the house,” said Fire and Emergency shift manager Garreth Lewis.

Three fire trucks were sent to a house fire in Matua this morning. Photo / Angela Newby

The fire has been extinguished and a fire investigator was advised.

Lewis said the cause of the fire was still unknown.