GAZA CITY, Gaza Strip (AP) — Israeli airstrikes have flattened homes in Gaza and Palestinian rocket barrages into southern Israel are persisting for a second day, raising fears of another major escalation in the Mideast conflict. Gaza’s health ministry said on Saturday that 24 people had been killed so far in the coastal strip, including six children and two women. The fighting began with Israel’s targeted killing of a senior commander of the militant Islamic Jihad group on Friday. Gaza’s Hamas rulers so far appear to be staying on the sidelines, keeping the conflict’s intensity somewhat contained, for now. The Israeli military says an errant rocket fired Saturday by Palestinian militants killed civilians, including children, in northern Gaza.