DEIR AL-BALAH, Gaza Strip (AP) — Palestinian officials say an Israeli strike on a mosque in the Gaza Strip has killed at least 19 people. Israel meanwhile intensified its bombardment of northern Gaza and southern Beirut on Sunday in its widening war on Iran-allied militant groups across the region. Israel is still battling Hamas in Gaza nearly a year after its Oct. 7 attack, and has opened a new front against Hezbollah in Lebanon, which has been trading fire with Israel along the border since the war in Gaza began. Israel has also vowed to strike Iran itself after it launched a ballistic missile attack on the country last week.