Two of the protesters, Baibolat Kunbolat and Tursungul Nuraqai, were released later on May 11.

The whereabouts of the others is unknown, reports Radio Free Europe Radio Liberty website.

Kunbolat told RFE/RL on May 12 that he and other protesters, mainly women, were detained after they rallied in front of the Chinese Consulate and then moved to picket a Chinese bank and a Chinese gasoline station in Almaty.

He said the police interrogated him over his role into the demonstration.

"I did not sign a protocol and did not write down any testimony. They let me go after 9:00 p.m. but ordered me to come back for questioning the next day," Kunbolat said.

Who are Uyghur Muslims?

Uyghur Muslims are a Turkic minority ethnic group originating from and culturally affiliated with the general region of Central and East Asia.

The Uyghurs are recognized as native to the Xinjiang Uyghur Autonomous Region of the People's Republic of China.