Iran has arrested dozens of people on suspicion of spying as fears grow in the Islamic Republic over the extent of its infiltration by Israel’s Mossad intelligence service.

The Israeli military issues an "urgent warning" to people in Tehran's District 3 that air strikes will hit "military infrastructure" in the area.

Haifa and Tel Aviv struck by Iranian missiles as U.S. embassy in Israel directs government employees and families to shelter in place at home.

An Israeli airstrike struck Iran's state-run television broadcaster during a live broadcast Monday, intensifying an already volatile confrontation between the two regional rivals. The attack came amid a series of tit-for-tat strikes that have killed hundreds across both countries since the outbreak of hostilities late last week.

Pakistan’s embassy in Iran's capital Tehran is organizing evacuations for citizens who want to leave because of the conflict with Israel. (AP video by Tawab Khan)

Red alert sirens warning of incoming fire have sent Israelis scrambling to bomb shelters over the last three nights, and Iran has vowed to keep launching ballistic missiles.

Israel called the move “outrageous.” A French official said Israeli companies were defying an agreement not to display so-called offensive weapons.

The head of the International Atomic Energy Agency says there is a possibility of both radiological and chemical contamination within Iran’s main nuclear enrichment facility in Natanz.

Meanwhile Donald Trump says his early G7 exit has "nothing to do" with an Israel-Iran ceasefire, as fighting between the two nations enters a fifth day.