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Blasts have been heard in Tehran and sirens have sounded in Israel as US president convenes National Security Council.

President Donald Trump signaled Monday that the ongoing conflict between Israel and Iran was intensifying rapidly, announcing he would return to Washington a day early from the Group of 7 summit in Canada to monitor developments after issuing an ominous warning to Iranians to “immediately evacuate” their capital city.

Prosecutors provide chilling details in the shootings of Minnesota lawmakers. And Senate Republicans release their proposals for Trump’s agenda bill, with some differences from the House-approved version.

The leaders of G7 nations have called for a "de-escalation of hostilities in the Middle East, including a ceasefire in Gaza". In a joint statement, they also reiterated their "commitment to peace and stability" in the region, adding that within this context "Israel has a right to defend itself".

President Donald Trump has said he left the G7 summit in Canada for something "much bigger" than a ceasefire deal between Israel and Iran.

French President Emmanuel Macron inferred that Trump departed the summit early to work on a ceasefire between Israel and Iran.

During the news conference with Carney, Trump repeatedly mentioned that Russia was thrown out of what used to be the G8 in 2014 - and blamed Barack Obama and former Canadian Prime Minister Justin Trudeau. Canada was led by Stephen Harper at the time, not Trudeau.

The Group of Seven nations expressed support for Israel in a statement issued late on Monday and labeled its rival Iran as a source of instability in the Middle East, with the G7 leaders urging broader de-escalation of hostilities in the region.