A massive cargo ship turned sideways in Egypt’s Suez Canal, blocking traffic in a crucial East-West waterway for global shipping. Traffic on the narrow waterway dividing continental Africa from the Sinai Peninsula stopped Tuesday after the MV Ever Given, a Panama-flagged container ship with an owner listed in Japan, got stuck. It wasn’t immediately clear what caused the Ever Given to turn sideways in the canal. GAC, a global shipping and logistics company, described the Ever Given as suffering “a blackout while transiting in a northerly direction,” without elaborating. Others blamed high winds for turning the vessel. The Ever Given’s bow was touching the canal’s eastern wall, while its stern looked lodged against its western wall, according to satellite data from MarineTraffic.com. Several tug boats surrounded the ship, likely attempting to push it the right way, the data showed. Opened in 1869, the Suez Canal provides a crucial link for oil, natural gas and cargo being shipping from East to West. Around 10% of the world’s trade flows through the waterway and it remains one of Egypt’s top foreign currency earners. In 2015, the government of President Abdel-Fattah el-Sissi completed a major expansion of the canal, allowing it to accommodate the world’s largest vessels.