Two other units were also damaged during the Friday morning blaze
Fire has gutted a unit in Rockingham.
Nine fire crews were called to the unit along Merope close around 9.30 on Friday morning.
Firefighters worked for just over an hour to extinguish the blaze, with all flames out by 10.50am.
People inside the unit were able to escape unharmed.
Two other units sustained smoke damage.
The cause has been deemed accidental and no damage bill has been set yet.
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