Rio De Janeiro, May 29 -- Brazil's relationship with the United States is not unconditional, Foreign Minister Mauro Vieira told a committee under the Chamber of Deputies, amid concerns that new U.S. restrictions could affect Brazilian citizens.

Vieira voiced concern over the U.S. government's recent decision to suspend new visas for international students.

"It's a worrying situation. We have a large number of Brazilian students at U.S. universities, and we'll have to monitor how this unfolds," he said on Wednesday.

Vieira stressed that under international agreements, host countries are obligated to grant visas for multilateral events, including those held by the United Nations or the Organization of American States.

The U.S. visa su...