21.   The border was closed to all but those with valid travel documents after the United States asked Pakistan to shut down the flow of supplies to the Taliban.

22.   The border closure applies to everything except food and people with valid travel documents, Khan said.

23.   The country has reportedly agreed to a U.S. demand to seal the border, though some people with valid travel documents were still crossing on Sunday.

24.   The three Indonesians were found to have valid travel documents.

25.   They handed him a legal paper accusing him of being in India without valid travel papers.

26.   They were detained for not having valid travel papers and would probably be deported, the spokesman said, on customary condition of anonymity.

27.   They were constantly afraid, Choi said, of being picked up without valid travel documents by Chinese authorities or apprehended by North Korean security officers operating in China.

28.   They were later sent to a detention center in Penang because they did not have valid travel documents.

29.   Without valid travel documents, Ari cannot be deported.

30.   Without valid travel documents, the boy can not be deported.