Hainan Airlines flight HU-7244 had to return and make an emergency landing at Hefei Xinqiao International Airport, China on the morning of July 8.
The Boeing 737-800, heading to Guangzhou, had to be turned back after the crew received indication of smoke in the cargo hold.
The plane landed safely and was evacuated through emergency slides.
There were 162 passengers and 9 crew members aboard the plane; authorities said 8 of them sustained injuries during evacuation and were taken to hospitals.
Civil Aviation Authority of China (CAAC) were investigating.