Conflict triggers significant displacement of people across region
Bethany BellForeign correspondent
The UN Refugee Agency, UNHCR, says intensifying violence across the Middle East and beyond has already triggered significant population movement.
It said an estimated 100,000 people left Tehran in the first two days following the attacks.
In Lebanon it said 58,000 people were sheltering across collective sites.
In Syria, it said that nearly 10,000 Syrians and close to 1,000 Lebanese crossed from Lebanon on 2nd March, nearly three times the daily average.
US says 'firepower over Iran to surge dramatically' as Israel bombards Beirut and Tehran
Meanwhile, President Donald Trump has told a White House event the US is striking Iranian drone and missile systems "every single hour".