1968.5.24南华早报：北京大规模游行声援法国罢工者、英国外交部要求中方提供被扣押的英国人信息

Crowds support French strikers: London, May 24
South China Morning Post (1946-Current); May 25, 1968;
ProQuest Historical Newspapers: South China Morning Post
pg. 20

Britain demands access to subjects detained in China: London, May 24
South China Morning Post (1946-Current); May 25, 1968;
ProQuest Historical Newspapers: South China Morning Post
pg. 1
当时有大约10名英国人在中国被关押，英国外交部例行召见中共国驻英代办，要求中共提供相关信息。