Protesters have taken to the streets of London as part of a "global day of action" against the Iranian regime. The country's exiled crown prince Reza Pahlavi called on Iranians around the world to increase international pressure on Tehran after its deadly crackdown on protests in the country. Many demonstrators waved green, white and red flags with lion and sun emblems, the flag Iran used before the 1979 Islamic Revolution which toppled the Pahlavi dynasty. #skynews #iran #iranprotests SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews Follow us on Twitter: https://twitter.com/skynews Like us on Facebook: https://www.facebook.com/skynews Follow us on Instagram: https://www.instagram.com/skynews Follow us on TikTok: https://www.tiktok.com/@skynews For more content go to http://news.sky.com and download our apps: Apple https://itunes.apple.com/gb/app/sky-news/id316391924?mt=8 Android https://play.google.com/store/apps/details?id=com.bskyb.skynews.android&hl=en_GB Sky News Daily podcast is available for free here: https://podfollow.com/skynewsdaily/ To enquire about licensing Sky News content, you can find more information here: https://news.sky.com/info/library-sales