The wife of a pro-democracy activist detained in China says she has been barred from flying to the mainland to visit her husband, whose case has inflamed cross-strait tensions.
Li Ching-yu told reporters that airline staff told her Beijing authorities had cancelled her Chinese-issued travel permit when she tried to check in on Monday.
Li had hoped to fly to China to demand information about her husband, Li Ming-che, who has not been heard from since March 19.
A Chinese official said last week that Li was under investigation on suspicion of endangering Chinese national security and was in "good physical condition".
Li, a university employee who used social media to discuss China-Taiwan relations, is the first Taiwanese activist in years held by China on security charges.
