--- description: Swedish officials say they are investigating the wreckage of a mysterious submarine that was spotted in territorial waters, 2 miles off of Sweden's coastline. title: Sweden Investigates Mysterious Submarine Found Off Coast image: https://static.time.com/v3/assets/bltea6093859af6183b/blt32ec9af3c2c05d98/69885cb8cd1bba6a646fc787/gettyimages-457585080.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  * [World](/section/world/) ## World Update your preferences in [Account Settings](/account/preferences/) Close # Sweden Investigates Mysterious Submarine Found Off Coast  by [Dan Kedmey](/author/dan-kedmey/)  ## Dan Kedmey Update your preferences in [Account Settings](/account/preferences/) Close Jul 28, 2015 1:28 PM CUT  The Swedish corvette HMS Visby under way on the Mysingen Bay on October 21, 2014 on their fifth day of searching for a suspected foreign vessel in the Stockholm archipelago. The Swedish corvette HMS Visby under way on the Mysingen Bay on October 21, 2014 on their fifth day of searching for a suspected foreign vessel in the Stockholm archipelago.Fredrik Sandberg—AFP/Getty Images  by [Dan Kedmey](/author/dan-kedmey/)  ## Dan Kedmey Update your preferences in [Account Settings](/account/preferences/) Close Jul 28, 2015 1:28 PM CUT Swedish officials say they are investigating a mysterious submarine that apparently ran aground in territorial waters two miles off of Sweden’s coastline. Sea explorers with Ocean X spotted the roughly 65-foot submersible at an undisclosed location last week, prompting speculation about its origins. Ocean X explorer Dennis Åsberg told Swedish newspaper [Expressen](https://translate.google.co.uk/translate?sl=auto&tl=en&js=y&prev=%5Ft&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.expressen.se%2Fnyheter%2Fframmande-ubat-hittad-i-svenskt-vatten%2F&edit-text=&act=url "undefined") that the submarine appeared to have Russian cyrillic characters on its hull and no signs of physical damage. The absence of a distress signal led one defense expert to speculate that the submarine may have run aground recently while on a confidential mission, while other experts suspect that the craft dates back to WWI. The Ocean X team said it had partnered with Swedish officials to conduct further analysis into the submarine’s origins. The investigation comes one year after Swedish intelligence agents [detected](http://time.com/3585470/sweden-submarine-russia/ "undefined") a foreign submarine, transmitting Russian distress signals, east of Stockholm. ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3974547/sweden-submarine-russia-2/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3974547/sweden-submarine-russia-2/"},"headline":"Sweden Investigates Mysterious Submarine Found Off Coast","datePublished":"2015-07-28T13:28:36.000Z","dateModified":"2026-02-22T09:38:48.611Z","description":"Defense experts debate whether the submarine ran aground recently or as far back as WWI","url":"https://time.com/3974547/sweden-submarine-russia-2/","keywords":["sweden"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt32ec9af3c2c05d98/69885cb8cd1bba6a646fc787/gettyimages-457585080.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Dan Kedmey","jobTitle":null,"url":"https://time.com/author/dan-kedmey/"}],"articleSection":"World","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt32ec9af3c2c05d98/69885cb8cd1bba6a646fc787/gettyimages-457585080.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"SWEDEN-MILITARY-SUBMARINE-RUSSIA-SEARCH","caption":"SWEDEN-MILITARY-SUBMARINE-RUSSIA-SEARCH","creditText":"Fredrik Sandberg—AFP/Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/world/","name":"World"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/3974547/sweden-submarine-russia-2/","name":"Sweden Investigates Mysterious Submarine Found Off Coast"}}]},{"@context":"https://schema.org","@type":"VideoObject","name":"China's Drift Towards a More Fragmented World","description":"Editor-at-large Ian Bremmer discusses China's financial growth and the challenges it faces in becoming the world's largest economy.","thumbnailUrl":"https://cdn.jwplayer.com/v2/media/jZ1U3aiv/poster.jpg?width=720","uploadDate":"2015-06-02T18:26:16.000Z","contentUrl":"https://cdn.jwplayer.com/manifests/jZ1U3aiv.m3u8","embedUrl":"https://time.com/3974547/sweden-submarine-russia-2/","duration":"PT2M49S","potentialAction":{"@type":"SeekToAction","target":"https://time.com/3974547/sweden-submarine-russia-2/?jw_start={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"}}] ```