The warning towers erected after the 2004 Indian Ocean tsunami are said to be dysfunctional, according to Reuters: Thailand’s warning system includes warning towers, a network of detection buoys in the sea and public announcement systems. “Around 70 to 80 percent, or around 2,000 pieces, need to be taken care of. We set up this system since 2006 so it needs to be maintained,” Kobchai Boonyaorana, deputy director-general of the Disaster Prevention and Mitigation Department, told Reuters, referring to various equipment. “Batteries need to be changed,” he added, “I’ve ordered that this needs to be done urgently particularly in the southern region which is a tourist region. There might be some places where the equipment is damaged but not many places.