He was freed from a police detention centre where staff had claimed they had no record of him.
Legislation from 2010 has improved police action on domestic violence, but victims find it hard to claim a fair legal settlement afterwards.
As international rights groups raise the alarm, people in Uzbekistan share their concerns on social networking sites.
As uniformed police shrug their shoulders, human rights defender says Sergei Naumov may have been seized by secret service.
But why is the government so keen to crush opposition election chances?
Official refusal to disclose Sergei Naumov’s location raises fears of ill-treatment.
Uninsured stallholders say they lost everything in devastating blaze.
Interview with Oinikhol Bobonazarova, a veteran NGO figure picked to stand against the current president.
Opposition bloc settles for leading civil society figure rather than politician.