The US Marine Troopers will temporarily hold waterborne operations on its new amphibious combat vehicles (ACVs), similar to a nautical tank. They are currently investigating why a couple of the cars got into problems off the coast of Southern California last week due to the high surf, according to officials from the armed forces.

“The pause of waterborne operations will allow for an investigation into the incident and ensure the assault amphibian community can review best practices and procedures to remain capable, safe, and ready,” the Corps announced in a statement.

Lt. Gen. David Furness, the US Marine Corps for Plans, Policies, and Operations deputy commandant, emphasized that the halt is the “right thing to do” while rigorous investigations are underway.

“A pause on ACV waterborne operations will give us time to conduct an investigation, learn from this event, and ensure our assault amphibian community remains ready to support our nation.”