Southlake police are warning residents against downloading a new app the claims to be for the city.
The app was advertised in a postcard that residents may have received in the mail.
Police say the city has not approved the postcard and has not partnered with any organization to produce either the app or the postcard.
The latest news from around North Texas.
"While we haven't yet confirmed the intent of those who mailed out these unauthorized postcards, the Southlake Police Department is currently investigating the matter," the department said in a Facebook post.
Southlake police have encouraged people who may have already downloaded the app to delete it and monitor their personal information to ensure it is not used fraudulently.
Anyone who notices suspicious activity involving personal information may contact Southlake police.