A report released last week indicated that up to 13,000 prisoners were hanged in one government prison

The Syrian government signalled on Monday that it was ready to agree to prisoner swaps Syria.measure that might help both sides prepare to attend peace talks.
The government is "continuously ready" for such an exchange with rebel groups, "particularly in the framework of efforts being made for the coming meeting in Astana", a news flash on the state-run Al Ikhbariya TV station said, citing an official source.
Al Jazeera's Andrew Simmons, reporting from the Turkish city of Gaziantep along the Syrian border, said it was "difficult to know how significant this is because there have been prisoner swaps in the past".
Russia, Turkey and Iran - who created a trilateral mechanism to enforce the fragile ceasefire in Syria last month in Astana - are set to meet again in the Kazakh capital later this week. 
The Kazakh foreign ministry said over the weekend that the Syrian government and rebel delegations had been invited to attend the meetings, set for February 15-16.
The meetings in Astana were originally aimed at consolidating the truce in Syria, a nationwide halt in the fighting established late in December that has steadily fallen apart over the past month. 
The Astana talks were also meant to pave the way towards peace negotiations Geneva, tentatively set to begin on February 20. 
"Originally, the thought was this was going to be a final attempt to get the ceasefire really tightened up in advance of the Geneva talks, but now there are suggestions that it could be more than that ... that there is some sort of peace deal on the table that might have legs for Geneva ... [it's] not clear yet," said Simmons. 
The Syrian government has conducted prisoner exchanges in the past with a wide range of rebel groups under the auspices of the Syrian Red Crescent and the International Committee of the Red Cross. 
This month, in a rare move, the Syrian government and rebel groups swapped dozens of female prisoners and hostages, some of them with their children, in Hama province in northwestern Syria.

Source: Aljazeera