In a statement, the ministry expressed "regret for certain unacceptable behaviour by a small number of protesters in spite of efforts by the police" at the British embassy.
"The relevant authorities have been asked to take the necessary measures and look into this issue immediately," it said.
The ministry stressed the Iranian government`s "commitment to protecting the rights of diplomats and diplomatic locations," and promised to follow up the incident "through legal and relevant channels." (*)
Editor: Kunto Wibisono
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