“Very concerned about the temporary detention of British Ambassador Rob McAir in Iran. Full respect for the Vienna Convention must be shown. The EU calls for de-escalation and space for diplomacy, ”he wrote on Twitter.

Very concerned about the temporary detention of the UK Ambassador @HMATehran in Iran. Full respect of the Vienna convention is a must. The EU calls for deescalation and space for diplomacy.

- Josep Borrell Fontelles (@JosepBorrellF) January 12, 2020

Earlier, Tasnim reported that the British ambassador was detained in Tehran in connection with participation in the protests.

McAir later stated that he had come to the memorial service in connection with the crash of a Ukrainian passenger plane in order to pay tribute to the victims.