2 buildings in Downtown Detroit receive bomb threats; All clear given

DETROIT – The Guardian Building at 500 Griswold Street and the Wayne County Treasurer's Office at 400 Monroe Street in Downtown Detroit received bomb threats Thursday afternoon. 

No evacuations have been announced. It's not known if the threats were at all credible or how they were made -- either by phone or email, or some other method. 

As of 3 p.m., the all clear was given and nothing was found. 

The Washtenaw County Sheriff's Office said their office was made aware of a bomb threat sent by email Thursday in Ann Arbor. The Sheriff's Office is investigating. 

The FBI in Detroit released this statement: “We are aware of the recent bomb threats made in cities around the country, and we remain in touch with our law enforcement partners to provide assistance. As always, we encourage the public to remain vigilant and to promptly report suspicious activities which could represent a threat to public safety.” 

Meanwhile, there have been dozens of reports of bomb threats across the country on Thursday afternoon.

ClickOnDetroit has reached out to the FBI for comment. 

Here's a look at what one of the common email bomb threats looks like:

On Wednesday, Detroit police investigated a bomb threat at the Frank Murphy Hall of Justice in Downtown Detroit. Officials said they received a telephone threat indicating there were three bombs outside the building.

Members of the Detroit Police Department Bomb Squad and K-9 units were being used for the search outside. The all-clear was given after a thorough search.