Tensions have been mounting in the Middle East as Israeli forces trade fire with Hezbollah fighters in Lebanon while continuing fierce attacks in Gaza.
Clashes have intensified in recent weeks between Israel and Hezbollah, a Shia militant group backed by Iran.
Israeli Defense Minister Yoav Gallant said on Friday, "We aren't looking for a war, but we're ready for one."
Iran's Permanent Mission to the United Nations said on social media that should Israel "embark on full-scale military aggression, an obliterating war will ensue. All options, including the full involvement of all Resistance Fronts, are on the table."
On Saturday, the Israeli military said it identified anti-tank projectiles crossing from Lebanon, and struck the sources of fire.
Meanwhile, Israeli forces have again carried out operations in northern Gaza, where they had claimed to have taken control, as well as in Rafah in the south. They said that they eliminated a large number of terrorists and located a weapons storage facility within a school compound.
Local media reported Israeli warplanes bombed a house in northern Gaza City, leaving several civilians dead and others wounded.
The United Nations said on Friday that the Israeli military ordered people in northern Gaza to immediately evacuate. It said its "humanitarian partners estimate that at least 60,000 people were displaced from this area."
Health authorities in Gaza say that the number of deaths in the enclave has risen to 37,834 since fighting began last October.