Iranian missiles struck Israel’s Tel Aviv and the port city of Haifa before dawn on Monday, destroying homes and fuelling concerns among world leaders at this week’s G7 meeting that the confrontation could lead to a broader regional conflict, Reuters reported.

At least five people were killed in the latest Iranian strikes, the national emergency service said, raising Israel’s death toll to 18 since Friday. At least 100 more were wounded in the overnight blitz, part of a wave of attacks by Tehran in retaliation for Israel’s pre-emptive strikes targeting the nuclear and ballistic missile programs of sworn enemy Iran.

Search and location operations were underway in Haifa where around 30 people were wounded, emergency authorities said, as dozens of first responders rushed to the strike zones. Fires were seen burning at a power plant near the port, media reported, according to Reuters.