The State Department raised its travel advisory for Israel to Level 4, the highest level, amid airstrikes from Iran.

By Alexander Cornwell, Parisa Hafezi and Jeff Mason TEL AVIV/DUBAI/WASHINGTON (Reuters) -Iranian missiles struck Israel's Tel Aviv and the port city of Haifa before dawn on Monday, killing at least eight people and destroying homes,

The United States advised Americans not to travel to Israel after another wave of Iranian missile attacks struck the country.

The death toll in an earlier strike in Bat Yam, a city adjacent to Tel Aviv, rose as more bodies were extricated from rubble, meanwhile, and a research center at the Weizmann Institute of Science in Rehovot was destroyed in a strike. On Sunday, missiles arrived during the day for the first time.

A volley of missiles launched by Iran killed eight people and injured nearly 100 in Israel on Monday as the conflict between the two countries entered its fourth day.

At least seven people were killed and more than 100 injured when an Iranian ballistic missile hit Bat Yam, just south of Tel Aviv, overnight on Sunday, domestic media reported. Other reports put the death toll at six people. Israel's police said residential buildings took a "direct hit that caused extensive damage."

Onlookers gathered on Saturday at a central Tel Aviv residential building next door to Israel’s defense headquarters that was damaged after it took a hit from what appeared to be shrapnel from an overnight missile barrage from Iran.