Hundreds gathered in front of Russian embassy in WarsawHundreds of people protested outside the Russian embassy in Warsaw on Monday, calling for Russia to be designated a terrorist state and for its diplomats to be expelled after missile strikes killed at least 11 people in Ukrainian cities.Opposition to the Russian invasion is intense in Poland, with the country becoming one of Kyiv's staunchest supporters and taking in millions of refugees since the conflict started.Protestors, many draped in the Ukrainian flag, brandished placards with the protest's slogan "Russia is a terrorist state."Russia rained cruise missiles on busy Ukrainian cities on Monday in what the United States called "horrific strikes," killing civilians and knocking out power and heat with its most widespread air attacks since the start of the war.President Vladimir Putin said he had ordered "massive" long range strikes after an attack on the bridge linking Russia to the annexed Crimean peninsula over the weekend, and threatened more strikes in future if Ukraine hits Russian territory."