The Israeli Prime Minister's Office said on Platform X: "The Israeli government is hosting the 12 abductees, ten of our citizens and Thai citizens, who returned today (Tuesday) to Israel."
"The appointed officials informed their families that they had returned to Israel. The Israeli government is committed to the return of all abductees and missing persons."
The operation comes as part of the release of Israeli and foreign hostages held by Hamas since the October 7 attack, following a truce brokered by the United States, Egypt and Qatar.
According to the Palestinian Prisoners' Club, 30 Palestinian detainees are also expected to be released on Tuesday in the fifth exchange between Israel and Hamas, including 15 women and 15 minors.
The truce between Israel and Hamas was supposed to expire on Monday night, but it was agreed to extend it for two more days, with it ending on Wednesday night.
It is also likely that the truce will be extended for two more days, to end on Friday night, according to a correspondent quoted by "Sky News Arabia" quoted an informed Israeli source on Tuesday.
The temporary truce provides for a ceasefire between the two sides, the exchange of Palestinian prisoners and hostages held by Hamas, and the entry of more humanitarian aid into the Gaza Strip.
Israel has repeatedly stressed that fighting will resume after the truce with Hamas ends, even if it is extended temporarily.