Titanic submersible missing at sea

A submersible tourist boat has gone missing in the Atlantic Ocean with its crew onboard, prompting a major rescue operation. #titanic #shipwreck #c4news (Subscribe: https://bit.ly/C4_News_Subscribe) ------- Watch more of our explainer series here - https://www.youtube.com/playlist?list=PLXjqQf1xYLQ6bu-iixvoFTVsiXQVlVniX Get more news at our site - https://www.channel4.com/news/ Follow us: Facebook - https://www.facebook.com/Channel4News/ Twitter - https://twitter.com/Channel4News TikTok - https://www.tiktok.com/@c4news Instagram - https://www.instagram.com/channel4news/