DENVER -- The all-clear was given at the Denver City and County Building after a threat toward the office of Mayor Michael Hancock on Wednesday morning.
The Denver Police Department said the threat to the building at 1437 Bannock Street came in about 7:30 a.m. and the building was placed on lockdown.
The person or a weapon were not found in the building.
The lockdown was lifted about 9:20 a.m. and employees were allowed to enter the building.
Shortly before 2:30 p.m., DPD said it had identified the male suspect believed responsible for the threats. Police described the individual as someone "in crisis," and that the department was working to obtain services on his behalf.
The male's identity was not released. There is no ongoing threat to the public, police said.
Mayor Hancock was reluctant to say whether he was the specific target of the anonymous 911 threat or if it was against his office as a whole.
"We want to keep everyone safe, no matter who the threat is against. We are aware there were some concerns about the mayor's office. Whether they were direct threats to me, we don't know yet, but we're listening to all the recordings that were called in," Hancock said.
An email to some City Hall employees obtained by FOX31 and Channel 2 said, "An identified individual made a threat against the Mayor and thankfully after a thorough search, the person or a weapon, were not found in the building."
DPD Deputy Chief Barb Archer said she would not describe the threat with the phrase "shoot-up."
"It was a threat to the building. I don't have the specific language of the call, so I can't give you that level of detail," Archer said.
Vehicular access to the City and County Building underwent new restrictions about one month ago after someone drove their car onto the plaza. People can no longer park in front of the building or drive down the street in front of it.
The city's public safety director, Troy Riggs, said the kind of threat given Wednesday is becoming more common.
"We are seeing a rise in this across the nation -- more and more threats against elected officials, against buildings and such. What I ask the public to do is if you see something, say something," Riggs said.AlertMe