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.

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

G7 leaders from Britain, Canada, France, Germany, Italy, Japan, and the US, along with the European Union, have convened in Canada this week