A malfunctioning tsunami warning siren activated on its own in Honomu early Wednesday morning.
The siren was blaring for up to 30 minutes as Hawaii County Civil Defense and police dispatchers used radio signals to try to shut if off.
The siren activated at or shortly after 1:30 a.m., Hawaii County Civil Defense Administrator Darryl Oliveira said. said. A radio signal successfully shut if off shortly after 2 a.m.