Qatar says it has begun shipping Cargo through Oman to bypass Restrictions imposed by other Gulf states.
Cargo for Qatar is usually shipped to ports in the United Arab Emirates and then loaded onto smaller vessels.
But last week the UAE, Saudi Arabia, Bahrain and Egypt severed economic and diplomatic ties with Qatar, alleging it supported terrorist groups and Iran.
Qatar has denied the charges and said the restrictions violate international law.
After meeting his Qatari counterpart in London on Monday, UK Foreign Minister Boris Johnson urged Qatar's neighbours to "ease the blockade".
But he also said Qataris must "take seriously" their concerns and "urgently need to do more to address support for extremist groups".