Abigal Edan, a 4-year-old American dual citizen, was among those freed, President Biden confirmed.
Biden said the US will push to extend the pause in fighting, allowing more hostages to be released and aid to reach Gaza.
Thirty-nine Palestinian prisoners and detainees — all teenagers, including a 14-year-old — were freed from Israeli prisons later Sunday, officials said. It marks the third such exchange during the truce.
The same number of hostages and Palestinian prisoners were exchanged Saturday, according to Israeli officials. That handover was delayed by Hamas in a dispute over aid for Gaza and the names of those released.