Beijing says those who died staged a 'terror attack' on a police station near Kashgar, fueled by religious extremism.
One of them was nine months into her pregnancy.
Relatives say they don’t know where he is being held.
Residents say the violence was triggered by the lifting of a woman's veil by a police officer.
New clashes in China's restive region leave 14 Uyghurs and two police officers dead.
His house was flattened while he was locked up in detention.