It was a Maersk cargo ship flying under the flag of a U.S. Territory.
For some reason we have heard very little about the resolution.
the iranians are demanding that the ships owner pays a FINE and they will release the vessel//allegedly
http://www.businessinsider.com/iran-to-release-cargo-vessel-after-it-pays-fine-2015-5
Okay, I looked it up ... a Danish company, with a ship flying a Marshall Islands flag, and having a crew mostly of Eastern Europeans and Asians ... ummm, yeah! ... :-) ...
The resolution ... they’ll pay a fine and be on their way.
Iran official says authorities to release seized Maersk ship in 2 days, after it pays fine
http://www.usnews.com/news/business/articles/2015/05/06/iran-to-release-seized-maersk-vessel-after-it-pays-fine