Indonesia's security minister says China has asked the government to extradite four Uighur men in exchange for returning an Indonesian graft fugitive recently arrested in Shanghai.

Coordinating Minister for Politics, Legal and Security Affairs Luhut Pandjaitan said Thursday that Indonesia will allow China to question the men, who are serving prison sentences for collaborating with Indonesia's most wanted militant, Santoso.

He said China's request was made during negotiations for the deportation from China of corruption fugitive Samadikun Hartono.

Pandjaitan said Indonesia would talk with China separately about the four members of China's Muslim Uighur minority "because it is a different case."

Hartono fled from Indonesia in 2003 after the Supreme Court sentenced him to four years in prison for misappropriating government bailout funds during the 1997-98 Asian financial crisis.