Seattle ? After spending 15 days inside a cargo container shipped from Shanghai, 18 men and four women were discovered early Wednesday at the Port of Seattle. The stowaways made the arduous journey in the hopes of finding work here, officials said.

All 22 people, said to be in their 20s or 30s, appeared to be in relatively good health after surviving the trip in a 40-foot container stacked on the cargo ship Rotterdam.

Michael Milne, a spokesman for U.S. Customs and Border Protection, said the Chinese citizens had been placed inside the container as part of a smuggling operation. “There is no terrorism suspicion at all,” he said.

The 22 were arrested and will probably undergo deportation hearings.