Brown, today considered "unacceptable and unjustified" detention of nine British diplomats in Iran, of which five have already been released, and stressed that the allegations claimed by the regime "are unfounded."
At a press conference at his residence in Downing Street after meeting with his Swedish counterpart, Fredrik Reinfeldt, Brown relied on the prompt release of the other arrested, which accuses Tehran of being behind the demonstrations against the alleged manipulation of results the elections on June 12.
The tension between the two countries has increased in recent weeks after the attack when the Iranian supreme leader, Ayatollah Ali Khamenei, called on the British Government of "evil" during his first public intervention since the unrest began.
Subsequently, the expulsion of two British diplomats last week took a similar action to London at the Embassy of Iran in United Kingdom, a drift which has been beset with these arrests, to which Brown was now "deeply disappointed". "Iran's action as unacceptable, unjustified and baseless," he said, after which he thanked the "support and solidarity shown by the European partners.