Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

Iran and Israel continued to exchange attacks into Monday amid the latest round of conflict between the two nations.

Although Iran maintains that its nuclear program is for peaceful energy purposes, Israel has long seen it as a threat. Israeli strikes have hit three of Iran’s nuclear facilities — Natanz, Isfahan and Fordow. Little damage appears visible in satellite imagery of Fordow.

Israel and Iran intensified their deadly air strikes Monday on the fifth day after Israel launched its first attack to dismantle Iran's nuclear capability.

Israel says it first bombed Iran to stop it from being able to produce nuclear weapons and the “existential threat” they would represent.

The conflict between Israel and Iran has wreaked considerable damage in both countries and caused casualties on both sides.

Israel’s military said it hit command centers of Iran’s Revolutionary Guard, while Iranian strikes overnight killed several people.