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.

Israel's military said it was striking military targets in Tehran in its latest salvo against the Iranian capital, after issuing evacuation warnings for one neighborhood. The military said it would publish more details as the situation progresses.

Israel's military says it struck a "communications centre of the Iranian regime", but Iran calls the attack a "war crime".

Oman and Qatar were leading efforts to begin ceasefire talks, while mediators said Iran was open to resuming nuclear negotiations if Israel’s attacks stop.

An Iranian state television reporter stopped a live broadcast when an explosion occurred an hour after Israel issued a warning to evacuate the area of Tehran where the TV studios are located.

"Israel is being assisted this way or that way by some Iranians," ex-Israeli National Security chief Giora Eiland told Newsweek.

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