The directors of the CIA and Israel’s Mossad will meet Qatar’s prime minister in Doha on Sunday to begin negotiations for a new short term Gaza ceasefire deal and the release of some hostages by Hamas in exchange for Israel’s release of Palestinian prisoners, an official briefed on the talks told Reuters.

The talks aim to get Israel and Hamas to agree to a ceasefire in Gaza that would last less than a month, with the hope that it would lead to a more permanent agreement, the official said. The details of which or how many hostages and prisoners would be released as part of the deal is not yet clear, the official said.