Efforts aimed at securing an elusive truce in exchange for hostages held in Gaza were due to resume Monday as disagreement between Israel and Hamas over demands to end the seven-month conflict intensified, AFP reports.

Israeli Prime Minister Benjamin Netanyahu said Sunday that “surrendering” to a demand to end the war would amount to defeat, while Qatar-based Hamas political chief Ismail Haniyeh accused Netanyahu of sabotaging the talks.

Negotiations were due to continue Monday in Qatar, where CIA director Bill Burns was expected for “emergency” talks on mediation efforts with Qatari Prime Minister Mohammed bin Abdulrahman Al-Thani, a source with knowledge of the discussions told AFP.

A Hamas official said on Sunday the group’s delegation for Gaza truce talks was headed to Doha for “consultations”, after the last round of talks in Cairo failed to produce a breakthrough.

Hamas negotiators are then due back in Cairo on Tuesday, said Al-Qahera News, a site linked to Egyptian intelligence services.