Mexican airline Interjet has launched a campaign dubbed #BuscandoMika (FindMika) after an 8-year-old mixed-breed female dog apparently escaped her cage and got lost at Mexico City's airport.

The airline has posted photos of the search effort and flyers with a picture of the dog, a pink neckerchief around her neck. The flyer offers a 5,000-peso ($250) reward.

Airline traveler Pamela Alvarez has put appeals on social media sites saying the airline didn't inform her until she got to Houston that the dog escaped when the cage fell.

Interjet says in statement that it understands pets are important to their owners. It adds: "Up to now we haven't been able to find Mika, but we will continue to search with all means at our disposal."