Houston Police K-9 dies from heat exhaustion in patrol car malfunction.

A K-9 dog with the Houston Police Department died from heat exhaustion this week after being left in a patrol vehicle that had its engine unexpectedly turn off, with a secondary safety system believed to have failed, authorities said. The department is investigating the incident to determine what went wrong. Aron is not the first K-9 to die of heat-related injuries due to a purported safety system failure this year. Animal rights advocacy group PETA has warned that dogs can face an increased risk of suffering from heat-related injuries.