Authorities on Tuesday were trying to investigate how several pieces of luggage, belonging to air travelers, were reportedly found in a trash bin behind a Houston pet store.

According to Houston television station KRIV, the store's owners discovered 60 to 70 pieces of luggage, which belonged to passengers of Continental Airlines, Lufthansa, British Airways and U.S. Airways.

The owner of the Pet City store then contacted the Harris County Sheriff's Department.

According to AP reports, Mary Clark, a spokeswoman for Continental Airways said some of the luggage belonged to passengers of international flights but said she is equally clueless if the contents of the bags were stolen.

"We're going to be investigating and the authorities are going to be investigating," she said.

Continental airways is reportedly working with the other carriers to match the bags with lost luggage claims.