Uighur leader says 10,000 went missing in one night

Kadeer's visit to Tokyo was condemned by China. The vice foreign minister summoned the Japanese ambassador in Beijing to express China "strong dissatisfaction" and to "demand the Japanese government take effective action to stop her anti-China, splittist activities in Japan," the Foreign Ministry said.

In Xinjiang's worst ethnic violence in decades, Uighurs on July 5 attacked Han Chinese in the regional capital of Urumqi after police tried to break up a protest against fatal attacks on Uighur workers at a factory in south China.

Han Chinese in Urumqi launched revenge attacks later that week.

"The nearly 10,000 (Uighur) people who were at the protest, they disappeared from Urumqi in one night," Kadeer told a news conference in Tokyo through an interpreter. "If they are dead, where are their bodies? If they are detained, where are they?"

She called on the international community to send an independent investigative team to Urumqi to uncover details of what had taken place.