A hot potato: Elon Musk has waded into another controversy on the platform he once tried to buy. The world's richest man tweeted a proposal on how to end the war between Ukraine and Russia, and it's brought an angry response from the country's president.
Russia's largest social network has 75 million monthly users
Why it matters: Apple has removed Russia's Facebook competitor, VKontakte, from the App Store globally, a move prompted by new UK sanctions. It's one of several apps from VK, Russia's second-largest internet company, to have been dropped from the store, and the country is demanding an explanation.