A couple from east China's Hangzhou city found, during a tour of east China's island region of Taiwan, two hidden cameras inside the Airbnb house they were staying in earlier this year. Airbnb apologized on Friday through its official Weibo account. The couple found a spy camera disguised as a fire detector in the bathroom on the night they arrived. Later on, they found another hidden camera inside the fire detector in the bedroom. The local police department said the case was under investigation and confirmed a final hearing to be held next Friday.