Residents in the North Canterbury town of Oxford are fighting to keep their fire siren running 24/7.
A petition has been launched to keep the siren turned on overnight after Fire and Emergency changed it to only sound if services don't respond after three minutes.
The siren continues to run as normal between 7am and 10pm.
Oxford resident Cassandra Walker said while other North Canterbury towns do not run a siren overnight, her town was more remote.