There's at least one vehicle of a large size that has been detected underwater, according to Col. Roland L. Butler Jr., the superintendent of Maryland State Police.
"There's at least one vehicle, larger in size, that is completely encapsulated by the superstructure of the bridge, concrete," among other things, Butler said Thursday evening.
"It's going to take some time to get to that, and it's going to take some time to do that carefully" before divers can go to recover that vehicle, he added.