Denver International Airport (DEN) in the US has introduced a new mobile app that passengers and staff can use to inform safety and security concerns directly to airport authorities.

The app, named ‘See Say Airport’, allows users to send real-time information about potential security threats to authorities.

DEN is said to be the first airport in the country to use ELERTS, a public safety communication app, to crowd-source the reporting of safety and security issues.

DEN CEO Kim Day said: “Safety is number one priority and by downloading and reporting issues through the ‘See Say Airport’ app, the public can take an active role in keeping the airport as safe as possible.

“Safety is number one priority and by downloading and reporting issues through the ‘See Say Airport’ app, the public can take an active role in keeping the airport as safe as possible.”

“We encourage anyone who visits the airport regularly to download the app and use it to communicate with airport authorities directly regarding safety and security concerns.”

Using the ‘See Say Airport’ app, passengers can send photos, videos, text messages and GPS location of any suspicious persons or activity, unattended baggage and even unclean restrooms to airport operations for assistance.

Reports submitted by users are sent directly and immediately to airport authorities, which is then investigated. Feedback on the response is shared with the person who submitted the report.

ELERTS CEO Ed English said: “The Department of Homeland Security’s (DHS) See Something Say Something campaign brought attention to the importance of reporting suspicious activity to state and local law enforcement, but was created before mobile phones were an everyday accessory for nearly everyone.

“Combining the campaign effort with our See Say Airport mobile app, which makes it easy for anyone in an airport to report suspicious behaviour or questionable activity, is a powerful combination bringing this security initiative into the 21st century.

“Denver is an innovative first mover that will pave the way for airport safety and security communications – empowering the “crowd” – airport employees, contractors, vendors, drivers and the travelling public –  to help combat both internal and external threats.”

A number of such apps developed by ELERTS are currently being used by other major transit systems including MARTA in Atlanta, the MBTA in Boston, the NFTA in Buffalo, the VTA in Santa Clara and BART in San Francisco.