The U.S. Coast Guard on Monday evening intercepted a boat carrying 21 illegal immigrants from three countries headed toward San Diego.U.S. Customs and Border Protection notified Coast Guard officials at the Joint Harbor Operations Center around 10:45 p.

The Coast Guard started flying migrants to states along the border on Saturday. The Air Force is assigned to fly them out of the country.

All 21 passengers claimed to be Mexican, officials said. However, subsequent checks identified two passengers as Guatemalan and Salvadorans.

According to a press release, the Coast Guard was notified about a 40-foot panga-style vessel headed north to the maritime boundary line and U.S. waters.