Israeli PM Netanyahu claims airstrikes have severely damaged Iran's nuclear program and weakened its regime. As explosions rock Tehran, he warns collapse is possible; Trump urges Iran to resume talks.

Since Israel began its concerted attack on Iran on Friday, calls for regime change in Iran have grown louder – from hawks in the US Congress to Israeli officials and some Iranian activists abroad.

Prime Minister Benjamin Netanyahu insisted on Monday that Israel's campaign against Iran was "changing the face of the Middle East", as the two countries traded heavy strikes for a fourth day. The remarks came hours after a dramatic Israeli attack on an Iranian state TV building that forced a presenter to flee mid-broadcast under a shower of dust and debris -- prompting a threat of retaliation against Israeli news channels by Tehran.