Eight more hostages were freed by Hamas-led militants on Thursday in a sometimes chaotic process that briefly delayed the release of 110 Palestinian prisoners by Israel and underscored the fragility of a ceasefire in the Gaza Strip that began earlier this month.

Steve Witkoff, the U.S.’s new Middle East envoy, has joined Israelis in Tel Aviv who have gathered to watch the hostage releases in what has become known as “Hostage Square,” according to images broadcast on Israeli television.