He summoned the Iranian ambassador to protest Iran's seizure of the ambassador on January 11.

"This is an unacceptable act, violating the Vienna Convention and it needs to be investigated," British Prime Minister Boris Johnson said today. "We ask the Iranian government to ensure that this will never happen again. The Foreign Ministry has summoned the Iranian ambassador to show our strong opposition."

Last week, British Ambassador to Iran Rob Macaire was arrested after a protest broke out in Tehran to protest Iranian armed forces mistakenly shot a Ukrainian plane on January 8, killing all 176 people aboard. network.

Iranian Deputy Foreign Minister Seyed Abbas Araghchi confirmed the arrest of ambassador Macaire but insisted that British officials were soon released on identification. "He was arrested as an unknown foreigner at an illegal gathering," Deputy Minister Araghchi wrote on Twitter.

Macaire said he attended the event advertised as a prayer meeting and left only 5 minutes after hearing the screaming. British Ambassador confirmed that he did not participate in the protest. He was arrested about an hour and a half later.