ST. LOUIS • Mayor Francis Slay issued a statement on Thursday saying that the city is working with Uber, a rival to the Lyft ride-sharing app that started operating last Friday.

The city's taxi commission has unsuccessfully tried to shut down Lyft's mobile app, which connects riders with drivers, citing concerns over public safety. Uber offers various mobile app services that compete with the Lyft app.

Slay weighed in on Thursday.

"Uber has suggested a few changes to the regulations," Slay wrote. "The company has led me to believe that if those changes were made, it would abide by the other 80 pages of regulations and would seek certification from the Commission. Until yesterday, Lyft had not reached out to us, and then only following litigation instituted by the Taxicab Commission."

Uber told the Post-Dispatch earlier this week that it is evaluating the St. Louis market.