Angela Dorothea Merkel is a German politician serving as Chancellor of Germany since 2005. She served as the leader of the centre-right Christian Democratic Union from 2000 to 2018.
the United Kingdom has condemned the arrest of the British Ambassador in Iran as a "flagrant violation of International Law ".
He left the guard when it turned into a protest, but was later accused of assisting in the organization of the demonstrations.
Iran said he was "an unknown foreigner in an illegal Assembly" and appointed him to The Foreign office on Sunday.
In a statement, the Iranian Ministry of foreign Affairs Mr Macaire was "remembered", said that his presence in "illegal assemblies against" the Vienna Convention on diplomatic relations.
the BBC's diplomatic correspondent James Landale said Mr Macaire was to have understood, strongly protested that his arrest was not justified.
Our correspondent says that Mr Macaire made it clear that any suggestion that he was involved in the demonstrations was completely wrong, and he attended an event advertised, said a vigil for The Victims of Wednesday's Crash
Earlier, Iran's Deputy Foreign Minister Seyed Abbas Araghchi , who was detained denied Mr Macaire, in a tweet that he thought that it was "impossible" when the police told him, the British Ambassador has been arrested.
A phone conversation, Mr. Macaire identity and he was left free to add to this was confirmed 15 Minutes later, Mr Araghchi.
The Ambassador added: "the arrest of diplomats is of course illegal in all countries. "
Prime Minister Boris Johnson and the German Chancellor Angela Merkel condemned Mr Macaire arrest in a joint statement after a telephone conversation on Sunday, in which they acquire over their "common interests in ensuring that Iran never has a Nuclear Weapon ".
security Minister Brandon Lewis said on Sunday that the British Ambassador, the arrest "totally unacceptable" and a violation of the 1961 Vienna Convention.
"Iran needs to take a step back from this type of activity and play a proper part in co-operation with partners, in order to de-escalate," said Mr Lewis, Sky's Sophie ridge said.
Under the Convention, diplomats are not taken into custody. The Foreign office has a demand for a full explanation.
"is The Iranian government at a crossroads moment. It can still take its March towards pariah status with all the political and economic isolation that brings, or measures to deescalate the tensions and the derived in a diplomatic way. "
The Iranian newspaper Etemad together a picture of The Ambassador on Twitter, after the Tasnim news agency reported his arrest.
had the Iran initially claimed responsibility for The Crash , refused, but on Saturday, President Hassan Rouhani , Iran's military admitted it had "accidentally" shot down The Passenger Plane after it to be mistaken for a cruise missile, if it is a sensitive military site.
President Rouhani said that the missile strike was an "unforgivable error".
it was time for Tehran "to resolve at the negotiating table, all of Iran-problems of international importance. "
He said Iran "must stop pursuing a Nuclear Weapon , its support for terrorism, and let the foreigners and dual nationals, it is cruel".
Out of the 176 victims on Board the Kiev-bound flight, 138 Canada was listed as a possible destination.
Four Britons were on Board of the Ukrainian passenger Plane .
when Mohammed Reza Kadkhoda Zadeh, who lived in the possession of a dry cleaners in West Sussex , BP-engineer, Sam Zokaei from Twickenham, and PhD student and engineer Saeed Tahmasebi, in Dartford.
Mr Tahmasebi, Iranian woman, Niloufar Ebrahim, was also listed as a passenger on the Plane .