BREAKING: All-Clear Given After Courthouse Evacuated for Bomb Threat

This story has been updated.

The all-clear signal was given after at 12:35 p.m. Thursday after nothing was found in an investigation of a bomb threat at 36th District Courthouse in Detroit Thursday.

Detroit police spokesman officer Dan Donakowski told the Detroit Free Press that police received a call around 11:15 a.m. about a bomb in the building at 421 Madison Ave. The building was evacuated and the police department’s bomb squad responded.

Police say they don’t know who made the threat.

Earlier report:

The 36th District Courthouse at 421 Madison Ave. Detroit is being evacuated due to a bomb threat, according to social media reports.

This is a developing story. Come back to Patch for more details.