Dozens of shipping containers tumbled over the side of a cargo ship and into the water Tuesday at the Port of Long Beach.

About 67 shipping containers fell off a vessel named the Mississippi shortly before 9 a.m. Tuesday, and no injuries have been reported.

Investigators were still working to determine a cause for the spill, but during the press conference, International Longshore Warehouse Union Local 13 president Gary Herrera asserted there was no “hu...