Police commanders in Houston said order numbers taken from a popular Texas fast-food restaurant cannot be used to mark evidence at crime scenes.

Officers are not allowed to use the distinctive orange-colored, tent-shaped numbers Whataburger customers receive so that orders can be brought to their tables.

Police spokeswoman Jodi Silva said there were concerns use of the markers amounted to a police endorsement of Whataburger.

She said the action was taken following the shooting death in March of a young woman. Officers who were waiting on crime-scene investigators wanted to mark bullet casings and other evidence and borrowed the order numbers from a nearby Whataburger.

Photos of the markers received online attention, as Whataburger is a popular Texas destination, similar to In-N-Out Burger in California.