Israeli intelligence suggests Iran is preparing to attack Israel from Iraqi territory in the coming days, possibly before the US presidential election, two Israeli sources tell Axios, Report informs.

Israel and Iran have been engaged in an escalating tit-for-tat for weeks. Carrying the attack out through pro-Iranian militias in Iraq and not directly from Iranian territory could be an attempt by Iran to avoid another Israeli attack against strategic targets in Iran.

The sources said Israeli intelligence suggests the attack is expected to be carried out from Iraq using a large number of drones and ballistic missiles.

Iran could quickly put its preparations into action if Tehran decides to strike soon, but the US doesn’t know if that decision has been made, a US official told Axios.

Iranian Revolutionary Guard Corps commander Hossein Salami said on Thursday that Israel made a mistake when it attacked Iran last week and stressed that Iran’s response will be “different from any scenario” Israel might expect.

A high-ranking Iranian source told CNN that Iran is planning a “definitive and painful” response that will likely come before the election, the network reported Wednesday.