Israel has threatened Tehran residents, saying they will "pay the price" after Iranian missile strikes hit Tel Aviv and Haifa, killing eight people as the prospects of an escalation in the attacks between Israel and Iran hang over a Group of Seven (G7) summit in Canada.

Israel's national emergency services said that 23 people have now died in Iranian attacks on Israel since June 13, when Israel launched air strikes at nuclear and military targets across Iran over the country's nuclear program. Iranian authorities say Israeli attacks have killed at least 224 people over the same time period.

Rescue workers continued to sift through rubble and debris in the northern coastal city of Haifa after Iran launched attacks in the early hours of June 16 that injured more than 100 Israelis, while in Tel Aviv, missiles hit several residential buildings, some of which were close to a US consulate.

"The residents of Tehran will pay the price, and soon," Israeli Defense Minister Israel Katz said, accusing Iran of purposely targeting residential buildings.

Israeli attacks on residential buildings in Tehran where senior military members and top nuclear scientists were said to be living have caused panic in the capital, with long lines of cars said to be snaking their way out of the city toward the north.

Photo Gallery:

Detailed Satellite Images Show Impact Of Israeli Strikes On Iranian Facilities

• RFE/RL

Images captured on June 15 by Maxar satellites outline exactly what was hit in the Israeli strikes on a range of facilities throughout Iran.

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Iranian Foreign Ministry spokesman Ismail Baghaei called on the United Nations on June 16 to "recognize and condemn Israel's aggression" while accusing the United States of complicity in the attacks.

President Donald Trump said on June 15 that the United States is not involved in the conflict, but as the archenemies continue to launch air strikes at each other, he admitted it's "possible" that will change.

Speaking to reporters before departing for the Group of Seven (G7) summit, Trump said the US would continue to support Israel, but stopped short of detailing further actions.

Earlier on June 15, in aninterviewwith ABC News, Trump was asked whether the United States would become more engaged in the conflict that began three days earlier.

He responded: "We're not involved in it. It's possible we could get involved. But we are not at this moment involved."

He added that he still hopes for a deal to end the fighting.

"I think it's time for a deal and well see what happens. Sometimes they have to fight it out, but were gonna see what happens," he said.