Insider spoke to family members of those believed to be kidnapped to understand what happens now.
He added that the American Jewish Committee's offices in Jerusalem and the US were actively "responding when we receive calls from family members" about missing loved ones.
"We started getting WhatsApp messages from family members that Hamas was in the kibbutz," Onn said.
But, as for those who were taken, Onn said the family has to hold on to hope during an excruciating time.
A plea from loved onesInformation about missing loved ones has been hard to come by, people in Israel told Insider on Sunday and Monday.
Persons:
—, Jonathan Conricus, Nir Oz, Abbey, Onn, That's, it's, Ted Deutch, Benjamin Netanyahu's, Kenneth Quinn, who's, Quinn, Nahar, Adrienne Neta, Biden, Neta, Rubi Chen, Itay, Chen, Lester Holt, John Kirby, Kirby, Shelly Shem Tov, Omer, Jake Tapper, Shem Tov, Tapper, she'd, Reed Alexander
Organizations:
Service, Hamas, Israel Defense Forces, US State Department, Israel Defence Forces, American Jewish Committee, Democratic, Jewish, Israel, Reuters, State Department, NBC News, National Security Council, White, United, CNN
Locations:
Gaza, Israel, American, Herzliya, Tel Aviv, Florida, Jerusalem, Hamas, Washington, United States, Israeli