A loud bang heard at Mount Maunganui shortly before 6am today was part of a controlled burn-off at Tauranga Airport, a Fire and Emergency New Zealand spokesman said.

A spokesman said said firefighters were called after reports came in of a fire in the area.

The spokesman said "apparantly there was an explosion of sorts" but no further action was needed.

The burn-off lasted about an hour-and-a-half.

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