U.S. Ambassador to Israel Mike Huckabee reported "some minor damage" to the American Embassy branch office in Tel Aviv on Sunday night due to "concussions of Iranian missile hits" nearby.

Huckabee said there were no injuries among U.S. personnel. American diplomatic offices in Israel remain closed alongside a shelter in place order for U.S. personnel.

Following a spate of missile strikes from Iran into Israel on Monday morning, local time, Israeli Emergency Services said medical teams have confirmed three people were killed and over 70 others were injured. Two women and one man, all approximately 70 years old, were killed, officials said. A 30-year-old woman is in serious condition and five others are in moderate condition. The remaining injuries were mild, officials said.

Israeli Fire and Rescue services reported damage to two buildings in Tel Aviv and additional damage to a building in the Central District, in Petah Tikva.

-ABC News' Will Gretsky

Iran has launched more missiles at Israel early Monday morning, according to the Israel Defense Forces.

Warning sirens were activated in several areas of the country, including Tel Aviv and Jerusalem.

The IDF said the Israeli Air Force was working to "intercept and strike where necessary to eliminate the threat."

Israel Fire and Rescue Services said it has received multiple reports of impacts in the central and southern districts. "Teams are en route to the scene," the agency said in a statement.

-ABC News' Will Gretsky

Israel is conducting renewed strikes on Iran overnight Monday, local time, according to the Israel Defense Forces.

The IDF said it is currently striking "surface-to-surface missile sites" in central Iran.

-ABC News' Will Gretsky

Iranian Foreign Minister Abbas Araghchi told a meeting of ambassadors in Tehran on Sunday that Israel's ongoing attacks on the country could not have happened "without the agreement and support of the United States."

"We have received messages from the U.S. through various channels over the past two days stating that the U.S. had no involvement and will have no involvement in this attack," he said during the meeting, which was broadcast by state media. "As I said, we don't believe the U.S.'s claim."

Araghchi also called on the international community to condemn Israel's attacks on nuclear facilities.

"This is perhaps the last red line of international law that the Israeli regime has crossed, and if the international community is indifferent to these red lines, it will certainly have consequences for all other countries," he said.

Araghchi said he had called for a meeting on Monday with the head of the International Atomic Energy Agency over attacks on the Natanz nuclear facilities.

Of Iran's own retaliatory strikes on Israel, the foreign minister said the attacks were "legitimate self-defense." He added, "If the aggression stops, naturally our reactions will also stop." Araghchi confirmed that Iran struck "economic" targets in Israel on Saturday night.

Araghchi also said Israel is responsible for the breakdown in nuclear negotiations with the U.S., its attack having scuppered planned talks in Oman on Sunday.

"It is perfectly clear that the Israeli regime does not want any agreement on the nuclear issue; it does not want negotiations; it does not want diplomacy; and the attack on Iran amid nuclear negotiations demonstrates the Israeli regime's opposition to any negotiations," he said.

-ABC News' Victoria Beaule