A leading human rights group is calling on European investigators to look into allegations of torture in secret prisons in Chechnya.
The International Helsinki Federation for Human Rights released a report Monday in which it says it has proof that Russian and Chechen security forces are operating such prisons.
It says Chechens are kidnapped and then tortured and sometimes killed in the jails. The report says the prisons violate Russian law and European human rights treaties.
Russia has not yet responded to Monday's report, but has denied allegations of torture in Chechen prisons in the past.
Russia has been battling Chechen separatists for much of the last decade.Some information for this report was provided by AP.