Police are working to identify the anonymous caller who reported a bomb threat Wednesday afternoon at a downtown Tampa bank. Officers said they responded just before 2:30 p.m. to the First Horizon Bank located off of N. Franklin Street after the caller made threats of an explosive device located outside the building. By 5 p.m., police said all scenes were cleared and no threats were found. “Making threats of explosives or any other dangerous device is a serious criminal offense,” Chief Lee Bercaw said in a statement. “These types of calls are not only illegal, but also create disruption, waste valuable public resources, and cause unnecessary concern for our community. Those found responsible for making such threats will be prosecuted to the full extent of the law.” An investigation is ongoing.