The British envoy in Tehran has been summoned to the Iranian Foreign Ministry over suspected links of British nationals with an Iranian extremist organization, Iran's ISNA news agency said.
Iranian state security services said militant group Mujahedin-e Khalq (MEK), whose members were arrested Tuesday on suspicion of trying to organize terrorist acts last June, received "backing" from the British, French and Swedish nationals.
ISNA said Ambassador Simon Gass had been summoned to the Foreign ministry. It said the Iranian officials demanded that Britain thoroughly investigate possible links of its nationals to the MEK's failed plans of terrorist attacks.
The MEK, based in the Iraqi city of Ashraf, is on the "black list" of terrorist organizations in the United States and Europe.
Relations between Britain and Iran aggravated dramatically in the wake of the last week's United Nations Security Council that had approved a resolution against Iran for failing to halt its uranium enrichment program.
MOSCOW, June 17 (RIA Novosti)

