Palestinian Authority President Mahmoud Abbas has ordered release of all the Hamas prisoners his security forces have rounded up in the past few days. His office said the order came late Thursday from Tunis, Tunisia, where Abbas was holding talks. Abbas's Fatah security forces arrested about 200 Hamas members in the last week. That was a response to a roundup of Fatah members in the Gaza Strip after a blast there killed five Hamas militants. Abbas has called for an end to the internal conflict. Release of the Hamas detainees was seen as a step in that direction.