Residents of Tehran have told the BBC that Thursday night saw the heaviest wave of strikes on the capital since Israel and the US launched their attack on Iran six days ago.
"The house was shaking for five minutes straight. Last night was the worst night," says a man in his 30s.
He says he could barely sleep because of the "constant explosions."
Another woman in her 40s said she "woke up to the sound of explosions at 05:00 and haven't been able to sleep ever since".
The BBC is withholding the identities of those we speak to for their own safety.
