Two Nigerians are among the 224 illegal migrants arrested by agents of U.S. Customs and Border Control in San Diego, California.
The agency said on its website that the raids that led to the arrest of the migrants took place between July 23 and July 26.
It noted that most of the migrants under arrest were from South America, North America and Africa.
They include 167 single adults and 57 family unit members.
Of the African migrants arrested, four are from Sierra Leone, two from Nigeria and one is from Gambia.
Brazil has the highest number of migrants with 183, while Romania and Colombia have eight each.
According to the website, 101 of the 224 migrants arrested crossed into the U.S. through a drainage tube near Imperial Beach.
The agency explained that the smugglers had cut the drainage tube bars at San Diego’s Imperial Beach Station to create a pathway for the migrants.
The Border agency said it first arrested 123 migrants on July 23 before arresting an additional 101 on July 26. The damaged drainage was discovered after investigations were carried out.
It added that all individuals were transported to a medical facility for evaluation.