Kathmandu. The International Chamber of Shipping (ICS), a major international shipping organization, has strongly condemned the retaliatory seizure of commercial ships between the United States and Iran. The organization has demanded that both countries immediately release the ship crews.Stating that maritime workers should be allowed to conduct their business freely without any fear or interference, John Stupart, Maritime Director of the ICA, told Al Jazeera that this incident is a violation of the freedom of navigation in international law.He says that merchant ships only transport commercial goods, but it is unacceptable to seize them for political purposes.