Iran's official news agency says dozens of hardline students have broken into the British Embassy residence in Teheran.
The IRNA agency says the students accuse Britain of supporting Israel's air assault on the Gaza Strip.
The agency says the students stormed the compound Tuesday evening and pulled down the British flag.
IRNA says the students then hoisted a Palestinian flag at the compound's entrance before police forced them to leave.
The news agency says the break-in lasted about an hour and that the area is now calm. No injuries were reported.
British Foreign Secretary David Miliband has called for an immediate cease-fire by both Israel and Hamas.