Former President Trump blasted American leaders as there were no U.S. citizens released in the past few days by Hamas.

Hamas terrorists released 17 hostages late Saturday, and 24 on Friday, but none of them were any of the 10 American citizens being held, including 4-year-old Avigail Idan. The release of hostages comes as Israel and Hamas have agreed to a four-day cease-fire.

Fifty hostages held by Hamas are expected to be released within the four-day window, according to Israeli Prime Minister Benjamin Netanyahu's office. In exchange, 150 Palestinians imprisoned by Israel will be released.

"Has anybody noticed that Hamas has returned people from other Countries but, so far, has not returned one American Hostage? There is only one reason for that, NO RESPECT FOR OUR COUNTRY OR OUR LEADERSHIP. This is a very sad and dark period of America!" Trump wrote Saturday on Truth Social.

17 ADDITIONAL HAMAS HOSTAGES RELEASED AFTER HOURS-LONG DELAY

Trump on stage in Iowa

Republican presidential candidate and former President Donald Trump speaks during a rally Nov. 18, in Fort Dodge, Iowa. (AP Photo/Bryon Houlgrave)

Two American nationals held hostage by Hamas were released Oct. 20, but no U.S. citizen has been released since then.

While on vacation in Nantucket, Massachusetts, on Friday, President Biden said he still expects American hostages to be released.

BIDEN UNSURE WHEN AMERICAN HOSTAGES WILL BE FREED BY HAMAS: 'WE DON'T KNOW'

President Joe Biden

President Joe Biden speaks about the release of hostages from Gaza, in Nantucket, Massachusetts, on November 24, 2023. (BRENDAN SMIALOWSKI/AFP via Getty Images)

"We don't know when that will occur, but we're going to expect it to occur," Biden said. "We don't know what the list of all the hostages are and when they will be released, but we know the numbers that are going to be released, So, it's my hope and expectation it will be soon."

Biden added that he didn't know the conditions of Americans being held hostage by Hamas. While walking on the island Saturday, he told reporters, "I‘m hopeful you’ll see something soon," when asked about American hostages.

According to U.S. intelligence, approximately 10 Americans are among those being held hostage by Hamas.

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Hamas hostage seen at Rafah border crossing

A vehicle believed to be carrying hostages abducted by Hamas militants during the Oct. 7 terrorist attack on Israel, arrives at the Rafah border Friday, amid a hostages-prisoners swap deal between Hamas and Israel, as seen from southern Gaza Strip. (Reuters TV via Reuters)

Rep. Lauren Boebert, R-Colo., wrote on X that Biden should be doing more in order for the American hostages to be released.

Fox News' Greg Norman, Lucas Tomlinson, Trey Yingst, Andrea Vacchiano and Chris Pandolfo contributed to this report.