Updated

The Afghan Taliban say that Pakistan is keeping the group's former deputy leader under detention despite the announcement of his release.

The Taliban spokesman, Zabiullah Mujahid, also claimed on the group's website on Wednesday that the health of the former No. 2, Mullah Abdul Ghani Baradar, was deteriorating.

Pakistani officials are denying the Taliban claim, saying Baradar is free but living under tight security for his own safety. They spoke on condition of anonymity because they were not authorized to talk to media about the issue.

Pakistani officials previously said Baradar was released on Sept. 21.

Many Pakistani and Afghan officials hoped his release would aid the struggling peace process in neighboring Afghanistan.

Baradar was arrested in a joint CIA operation in the southern Pakistani city of Karachi in 2010.