Iranian lawmakers have drafted an emergency bill calling on the Foreign Ministry to expel the British ambassador to Tehran after Britain joined other Western powers to impose fresh sanctions on Iran over that country's disputed nuclear program.
The bill is to be reviewed and voted upon by parliament on November 26.
If passed, it would downgrade diplomatic relations to the level of charge d'affairs.
Britain this week announced it was cutting financial ties with all Iranian banks in a move aimed to pressure Iran over its nuclear drive.
The United States and Canada also announced sanctions targeting Iran's financial sector.
The measures came after the UN nuclear watchdog agency, the International Atomic Energy Agency (IAEA), said Iran had engaged in nuclear weapons research.
Iran says its nuclear program is entirely peaceful.
compiled from agency reports