Another 350 suspected Taleban prisoners have been moved from a notorious jail in northern Afghanistan to Kabul.
Many Taleban fighters were caught at Kunduz in 2001
About 900 prisoners, half of whom are reported to be Pakistani nationals, staged a riot in Sheberghan prison last week, in protest at conditions.
They have been held without trial since the fall of the Taleban in late 2001, and many are reported to be suffering from tuberculosis.
An initial group of 60 prisoners was moved to the capital on Tuesday.
The prisoners were captured by forces of the ethnic Uzbek general, Abdul Rashid Dostum, during the US offensive which ousted the Taleban.
General Dostum told the BBC that he was happy to abide by the central government's decision to move the prisoners to Kabul.
Diplomatic sources in Kabul told BBC News Online the prisoners had been taken to the Pul-e-Charkhi jail outside the capital.
Most of them are thought to be Pakistanis, and Islamabad wants them sent back - as hundreds of others have been in the last 18 months.
President Hamid Karzai's government has sent a team of officials to see conditions for themselves inside Sheberghan.
During last week's riot, the prisoners set fire to part of the jail.