Nigeria, Aug. 2 -- The Nigeria Immigration Service (NIS) has cautioned Nigerian nationals holding U.S. visas to strictly adhere to the terms under which those visas were issued.

This advisory comes in response to recent concerns flagged by the United States government over the misuse of visas by some Nigerians.

In a statement released on Saturday in Abuja, the Service's Public Relations Officer, Akinsola Akinlabi, emphasized the importance of visa compliance for all holders.

The statement which was obtained by The News Chronicle reads "The Nigeria Immigration Service wishes to inform the general public of concerns raised by the United States Government regarding the misuse of U.S. visas by Nigerians.

"All visa holders are advised to s...