A Taiwanese man was arrested on Sunday morning when he tried to leave Manila and fly to Taipei using a fake Philippine passport.

Su Ping Yen, 27, was supposed to board a flight to Taipei, Taiwan, at Ninoy Aquino International Airport when airline personnel doubted the authenticity of his passport. The staff referred the passport to the Bureau of Immigration’s Forensic Document Laboratory, which confirmed it was a fake, GMA News reported.

Bureau of Immigration staff said the Taiwanese man allegedly bought the Philippine passport through a friend and paid him 3,000 pesos (US$58). Travel Control and Enforcement Unit Chief Erwin Ortanez said the man also presented a birth certificate that stated his mother was Filipina and his father was Chinese.

“His Philippine passport and birth certificate lists him as Alex Masangkay Su who was born in Pasig city. But when Officer Sheena Escobar asked him about basic details about his identity, he could not even answer,” Ortanez said.

The Taiwanese national is now detained at a detention facility in Camp Bagong Diwa, Taguig City, pending his deportation.