Iran’s seizure of the Maersk Tigris cargo ship probably stems from a $3.6 million judgment in a decade-long dispute over 10 shipping containers, the Maersk Group said. Myron Nordquist, a maritime law specialist at the Center for National Security Law at the University of Virginia School of Law, said the seizure of the vessel may violate international law, even if it was in Iran’s territorial waters, if the ship was operating within internationally recognized transit lanes.