A special adviser to the president on foreign affairs, Abike Dabiri-Erewa, said in a statement that Nigerians “without any compelling or essential reasons” should consider delaying.
“In the last few weeks, the office has received a few cases of Nigerians with valid multiple-entry US visas being denied entry and sent back to Nigeria,” she said.
Dabiri-Erewa said “no reasons were given for the decision by the US immigration authorities”.
The recommendation to postpone trips was given “until there is clarity on the new immigration policy” from Washington, she added.
“This is only to advise Nigerians without any compelling or essential reasons to visit the US to consider rescheduling their trip until there is clarity on the new immigration policy,” she said.
Dabiri-Erewa urged Nigerians in the diaspora to abide by the rules and regulations of their host countries and be good ambassadors of the country.
There has been uncertainty around the world since Trump announced a travel ban few weeks after his inauguration.
The travel ban, which affected predominantly Muslim nations, has since been suspended by a court.
Trump is expected to roll out a revised immigration policy this week.