DEIR AL-BALAH, Gaza Strip (AP) — Israel’s military on Monday issued sweeping evacuation orders covering Rafah and nearby areas, indicating it could soon launch another major ground operation in the Gaza Strip’s southernmost city.

It is the biggest such order since Israel resumed its offensive in the Palestinian territory earlier this month.

Over the past week, the Israeli military has pushed back into Rafah, launching air and artillery strikes, sending troops into several neighborhoods, and forcing Palestinians who had recently returned under a cease-fire to flee once again.

Palestinian health officials say Israeli strikes on the Gaza Strip have killed more than people, including over a dozen women and children.

The U.N. said Israel killed the people as they were trying to aid injured civilians, and then buried them in a mass grave. Israel said nine were militants.

Palestinian health officials say Israeli strikes on the Gaza Strip killed at least 15 people overnight, including 10 women and children