Marine transportation industry

In this undated photo issued Friday July 19, 2019, by Stena Bulk, showing the British oil tanker Stena Impero at unknown location, which is believed to have been captured by Iran. Iran’s Revolutionary Guard announced on their website Friday July 19, 2019, it has seized a British oil tanker in the Strait of Hormuz, the latest provocation in a strategic waterway that has become a flashpoint in the tensions between Tehran and the West. (Stena Bulk via AP)

FILE - In this April 9, 2018 file photo, released by an official website of the office of the Iranian Presidency, President Hassan Rouhani listens to explanations on new nuclear achievements at a ceremony to mark "National Nuclear Day," in Tehran, Iran. As Iran prepares to break through limits set by its 2015 nuclear deal with world powers, each step narrows the time its leaders would need to have enough highly enriched uranium for an atomic bomb -- if they chose to build one. By Thursday, June 27, 2019, Iran says it will have over 300 kilograms of low-enriched uranium in its possession, which would mean it had broken out of the atomic accord. (Iranian Presidency Office via AP, File)

The sign for the Hidden Oaks apartment complex in Jefferson City Missouri stands bent on May 23, 2019, from an apparent tornado in front of a tree that was ripped apart. A "violent tornado" touched down in Jefferson City, Missouri, causing possible fatalities, according to the National Weather Service (AP Photo/David A. Lieb)

This still image taken from video provided by Shayla Brooks shows a tornado on Wednesday, May 22, 2019, in Carl Junction, Mo. The tornado caused some damage in the town of Carl Junction, about 4 miles (6.44 kilometers) north of the Joplin airport. (Shayla Brooks via AP)

In this photo taken Tuesday, May 14, 2019, a container ship passes the Golden Gate Bridge in San Francisco bound for the Port of Oakland. Federal officials are promoting a campaign to get ships to slow down as they approach San Francisco and other California ports so they are less likely to injure or kill whales. The San Francisco Chronicle reported Friday, May 17, 2019, marine experts say four of the 10 gray whales found dead near San Francisco this year were killed by ships. (AP Photo/Eric Risberg)

Demonstrators confront police officers as scuffles broke out during a May Day rally in Turin, Italy, Wednesday, May 1, 2019. (Alessandro Di Marco/ANSA via AP)

Balloons and flags fly over the crowd as people prepare to walk on Red Square in Moscow, Russia, Wednesday, May 1, 2019, with the St. Basil's Cathedral in the background. As in Soviet times, people paraded across Red Square on May Day, but instead of red flags with the Communist hammer and sickle, they waved the Russian tricolor. (AP Photo/Pavel Golovkin)