A promotion for the upcoming release of "Dark Knight" prompted an evacuation at KENS-TV in San Antonio Tuesday morning.

KENS-TV

Above is a photo of the cake that was delivered to KENS 5 prompting an evacuation.

Firefighters and police were called to the station after a suspicious cake with a number written in icing with a wire sticking out was delivered in an unmarked box to the station shortly after 11 a.m.

Employees were allowed back into the building just before noon after firefighters determined everything was safe.

A spokeswoman for Santikos Theaters said an e-mail should have been sent to the station alerting them about the cake being delivered Tuesday morning.

KENS-TV is owned by Belo Corp., which also owns KVUE.