Iran's foreign minister Mohammad Javad Zarif has urged the United States to make more efforts to remove real and psychological barriers to doing business with Iran.

Zarif says he will raise the issue with US Secretary of State John Kerry this Wednesday at the Oslo Forum in Norway.

Last year, Iran agreed to limit its nuclear program in exchange for greater access to international markets. But Tehran says Washington has neglected to fulfill its side of the deal.

Iran complains that major international banks still fear working with Iran could be bad for business. EU officials say European banks and companies started working with Iran immediately after the nuclear deal was signed.