Israel shouldn’t go ahead with a military operation in the densely populated Gaza border town of Rafah without a “credible” plan to protect civilians, President Joe Biden told Prime Minister Benjamin Netanyahu on Sunday, the White House said.

Biden's call with Netanyahu came days after the US leader told reporters that Israel's response in the Palestinian enclave of Gaza was "over the top."

The call also focused on ongoing efforts to secure the release of hostages taken by Hamas in its Oct. 7 attack on Israel, the White House said.

Aid agencies say an assault on Rafah would be catastrophic.

Over half of Gaza's population of 2.3 million have fled to Rafah to escape fighting in other areas, and they are packed into sprawling tent camps and UN-run shelters near the border.

Netanyahu told “Fox News Sunday” that there’s “plenty of room north of Rafah for them to go to” after Israel’s offensive elsewhere in Gaza, and said Israel would direct evacuees with “flyers, with cellphones and with safe corridors and other things.”