In an attempt to gain insight into the city’s most vulnerable, Aurora Mayor Mike Coffman lived on the streets in secret for a week, CBS Denver reported Tuesday.

A spokesman for the mayor’s office confirmed Coffman stayed on the streets of Aurora and Denver for seven days and nights. He did not accept any donated food or money during the experiment.

In this time, Coffman only revealed what he was doing to CBS Denver reporter Shaun Boyd. The television station broadcast the report on the mayor’s experience at 10 p.m. Tuesday.

Promotional video for the broadcast showed the 65-year-old former congressman, living out of his backpack, bedding down under a tarp on the sidewalk at the edge of homeless encampment.

Although the mayor’s office confirmed Coffman’s participation, the mayor would not comment on the experiment until after the broadcast.