Booksellers Cheung Chi-ping (left) and Lui Por made brief returns to Hong Kong before returning the mainland. Photos: SCMP Pictures

Booksellers slipped back to mainland China after requesting Hong Kong police drop missing persons cases

Lui Por and Cheung Chi-ping both returned to mainland on the same day they arrived at Lo Wu checkpoint, sources reveal

Topic |   Hong Kong bookseller disappearances

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Booksellers Cheung Chi-ping (left) and Lui Por made brief returns to Hong Kong before returning the mainland. Photos: SCMP Pictures
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