The suspects surnamed Tan, Xie and Wang are allegedly responsible for three bomb hoax cases that occurred on October 27, 28 and 31, the Ministry of Public Security said in a statement today.
The police did not say whether the suspects and the three cases were connected.
The suspects confessed to the offences during interrogation and said they did it either because of life disputes or playing a practical joke, the statement said.
Changsha Huanghua International Airport in central China's Hunan Province and Fuzhou Changle International Airport in southeast China's Fujian Province received phone calls on October 27 and 28 respectively, saying there was a bomb on an airplane.