Hamas-led militants are set to free three more hostages, all Israeli civilian men, on Saturday, and Israel will release dozens of Palestinian prisoners as part of a fragile agreement that has paused the war in the Gaza Strip.

Three more Israeli hostages were freed on Saturday in the fifth round of exchanges between Israel and Hamas, as uncertainty looms over the next stage of the Gaza ceasefire agreement as well as the enclave’s long-term future.

Three men held hostage in the Gaza Strip for more than 16 months were freed Saturday, bringing the number of captives released by militants to 21 since the ceasefire between Israel and Hamas began Jan.