Tens of thousands of people packed the streets of Tel Aviv on Sunday to show support for families of hostages still being held in Gaza.

The demonstrators called for an end to the conflict and for a deal to be agreed to bring the remaining captives home in one of the largest protests in 22 months of the war.

“I am standing here not only as a parent but as a voice for 50 hostages who have had no voice for 22 months to say one clear a simple thing: enough," Ruby Chen, whose Israeli-American son, Itay Chen, was kidnapped and taken to Gaza before later being pronounced dead, told the crowds.

Groups representing families of hostages organized the demonstrations, and gave an even larger estimate of attendees, as frustration grows in Israel over plans for a new military offensive in some of Gaza's most populated areas.

Many Israelis fear that could further endanger the remaining hostages. Twenty of the 50 who remain are believed to be alive.

The war was triggered by the Hamas-led attack on southern Israel on October 7, 2023, in which around 1,200 people were killed and about 250 taken hostage.

Israel's retaliatory offensive has killed than 61,900 people in Gaza, according to Gaza's Health Ministry, which does not specify how many were fighters or civilians but says around half were women and children.

The ministry is part of the Hamas-run government and staffed by medical professionals. The U.N. and independent experts consider it the most reliable source on casualties. Israel disputes its figures but has not provided its own.