Police say just before noon today, a man walked into the All Pets Animal Hospital in the four-thousand block of Jacksboro Highway.
Employees told officers the man displayed a handgun and demanded money, but when the phone rang, the man ran out without any money.
The man is described as a white male in his early 20's.
He was last seen wearing a black t-shirt and white baseball cap.
Police say he may have brown hair and green eyes.
If you have any information, please call Crime Stoppers 322-9888.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.