JERUSALEM (AP) — Israeli officials appeared increasingly concerned that the International Criminal Court may issue arrest warrants against the country’s leaders, as international pressure mounts over the war in Gaza. Airstrikes overnight into Monday killed 22 people in a southern city, according to hospital records.

The deaths in Rafah included six women and five children, one of whom was just 5 days old, according to the records and an Associated Press reporter. Israel is planning an invasion of the city — though its closest ally, the United States, and others have repeatedly warned against it, saying an offensive would spell catastrophe for the more than a million Palestinians sheltering there.

Meanwhile, Israeli officials have referred in recent days to an ICC probe launched three years ago into possible war crimes committed by Israel and Palestinian militants going back to the 2014 Israel-Hamas war. The probe is also looking at Israel’s construction of settlements in occupied territory the Palestinians want for a future state.