Turkey has condemned China's treatment of its Muslim ethnic Uighur people as "a great cause of shame for humanity" and asked it to close the "concentration camps".
In a statement on Saturday, Turkish foreign ministry spokesman Hami Aksoy said that China has arbitrarily detained more than a million Uighurs.
China's embassy in Ankara posted a lengthy response to Aksoy's statements, saying that the accusations were false and urged the government to retract them.