A Hamas delegation left Cairo on Thursday, but will continue with Gaza truce talks until an agreement is reached with Israel, the terror group said in a statement, with a Hamas official blaming Israel for the lack of progress.

An official Egyptian source told the country’s Al-Qahera News state-affiliated TV channel that negotiations over a ceasefire in Gaza have reached an impasse over Hamas’s demand for a phased process culminating in an end to the war, but said talks will resume next week.

“Hamas’s delegation left Cairo this morning for consultation with the leadership of the movement, with negotiations and efforts continuing to stop the aggression, return the displaced, and bring in relief aid to our people,” the Hamas statement said.