A spate of thefts has seen tsunami sirens disappear at Piha and Karekare, Auckland Council reports. “The sirens are designed to alert as many people as possible in the area of a potential tsunami threat,” says Auckland Emergency Management (AEM) General Manager, Paul Amaral. “It is important for the community that they work when we need them.” If you notice damaged or missing tsunami sirens, call 09 301 0101 or report it online.