It hammered home its message by ordering the expulsion of BBC correspondent Jon Leyne just two days after supreme leader Ayatollah Ali Khamenei accused Britain of adopting an "evil" position in the face of a week of deadly protests.
"By making hasty comments, you will not have a place in the circle of the Iranian nation's friends," the victorious incumbent Mahmoud Ahmadinejad warned London and Washington in a statement on his website.
"Therefore, I recommend you to correct your interfering positions," added Ahmadinejad, whose election to a second four-year term in the June 12 poll is being challenged by the opposition.
Foreign Minister Manouchechr Mottaki also complained to foreign diplomats about Western interference, claiming that Britain had worked to sabotage the election.
"Great Britain has plotted against the presidential election for more than two years," Mottaki said, according to state-run Press TV.
"We witnessed an influx of people (from Britain) before the electio