Hamas released eight more hostages in Gaza Thursday as part of an ongoing ceasefire agreement with Israel in exchange for releasing hundreds of Palestinian prisoners.

Eight hostages − three Israelis and five Thai nationals − were returned to Israel Thursday after spending 482 days in Hamas captivity in Gaza. They were freed in an at-times chaotic handover in connection with a weekslong ceasefire and hostages-for-prisoners swap between Israel and the militant group aimed at ending 15 months of fighting.

Keith Siegel became the first American hostage freed on Saturday as part of an Israel-Hamas ceasefire agreement the U.S. helped broker that aims to ends the war in the Gaza Strip. With his release, there are now 6 Americans still being held in Gaza,

In the Middle East, the ceasefire between Israel and Hamas has been holding. But the deal requires more negotiations before the next phase can start — and there are some challenges in the way.