Hamas’ Gaza Strip leader Ismael Haniyeh, recently back from a tour of Arab states, praised the rise of the Islamist Muslim Brotherhood in the Arab world and predicted “black days” for Israel “because the nations know their path now.”

Israeli soldiers on Thursday arrested senior Hamas official Aziz Dweik, speaker of the Palestinian Parliament, on suspicion of involvement with terrorist groups, and detained another lawmaker of the group from Bethlehem, Khaled Tafish.

Hamas said Dweik was taken into custody at a checkpoint near the city of Ramallah. It accused Israel of trying to undermine moves by Abbas and Hamas leader-in-exile Khaled Meshaal to end four years of bitter rivalry and unite the two main Palestinian factions.

Haniyeh, speaking at a Gaza mosque after Friday prayers, said Abbas should call off meetings with Israeli negotiators in Jordan which are aimed at reviving peace negotiations suspended 15 months ago.

“The pointless and failed meetings should stop. These failed experiences should stop,” he said. “A Palestinian should not shake the hand of his enemy, the enemy who arrests the symbols of Palestinian legitimacy.”

“We want to see something in the West Bank. We want to see the prisoners freed. We want to see the security coordination with the (Israeli) occupation stopped,” Haniyeh said.

“Palestinian reconciliation and security cooperation with the occupation are two parallel lines that cannot meet.”

Hamas seized control of the Gaza Strip from forces loyal to Abbas’ Fatah movement during a brief civil war in 2007. The Palestinian legislative council has been effectively mothballed ever since.

Hamas and Fatah agreed to bury the hatchet and end their hostility with a reconciliation deal last year, but it has yet to be implemented in deed or in spirit.