Carl Court/Getty Images(LONDON) — U.K. Foreign Secretary Boris Johnson is calling for Russia to be investigated for Syrian war crimes and suggested that anti-war protesters should demonstrate against the country in front of the Russian embassy.

Johnson told members of parliament in his first House of Commons speech since becoming foreign secretary that Russia should be held responsible for bombings in the northern Syrian city of Aleppo, attacks that Russia has said are targeting terrorists.

He noted attacks on hospitals in Aleppo and on a United Nations relief convoy a month ago, the latter of which Russia denied carrying out.

“It is time I think for all these incidents to be properly and fully investigated with a view to assembling the necessary evidence to ensure that justice is done.” he said.

Johnson added that he would “like to see” protests in front of Russia’s embassy in London and wondered why there was no outrage from the Stop The War coalition.

“There is no commensurate horror, it seems to me, among some of those anti-war protest groups,” he told the House of Commons.

The Russian Embassy responded to Johnson’s call for protests in a series of tweets later Tuesday.

“Very unusual call from the Foreign Secretary to hold demonstrations in front of the Russian embassy. New form of British diplomacy?” said one tweet.

Very unusual call from the Foreign Secretary to hold demonstrations in front of the Russian embassy. New form of British diplomacy? pic.twitter.com/rzxUkGyyrQ

— Russian Embassy, UK (@RussianEmbassy) October 11, 2016

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