Family members receive the first official news since his arrest five months ago.
Amnesty International issues an 'urgent action' alert for Ilham Tohti.
The whereabouts of professor Ilham Tohti however remain unknown.
His lawyer visits Xinjiang's capital Urumqi to inquire about his whereabouts but returns without any clues.
The World Uyghur Congress raises concerns the men may have been fleeing 'repression' in Xinjiang.
The decade-long campaigner says authorities conspired to downplay his case.
Authorities say the attack was an act of separatism.
His family is forcibly evicted from their Atush home after a nearly decade-long fight.
Beijing maintains silence over Ilham Tohti's whereabouts and the specific charges he faces.
Residents say they have been given few opportunities in their new suburban homes.
An exile group says the detention may set the stage for a new hardline approach in the restive Xinjiang region.
Ilham Tohti is taken away and his family placed under close surveillance by police from Beijing and Xinjiang.
Witnesses say another woman was brought in to the same hospital for an abortion.
Increased armed raids on Uyghur households could lead to more deadly violence, an exile group warns.
A section of the Urumqi River that formerly ran to the city has now dried up, according to sources.
After more than 12 years in US custody at Guantanamo Bay, three men are freed.