Planes have been grounded at some London airports due to a technical failure. The UK air traffic authority says it is limiting the number of aircraft flying in the London control area to ensure safety. The issue is a result of a technical issue at NATS Swanwick air traffic control centre, it added. Both London City and Gatwick airports have said the air traffic control issue is affecting departures. Read more on the Sky News website: https://news.sky.com/story/uk-airports-latest-flights-grounded-at-heathrow-and-gatwick-after-air-traffic-control-issue-13404170 #Airport #UKNews #Airports 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