Fired Falcon Heights fire chief Rich Hinrichs was arrested and is under investigation for alleged terroristic threats.
Ramsey County sheriff's deputies arrested Hinrichs on Tuesday night near Falcon Heights City Hall, according to a sheriff's department statement.
Falcon Heights City Administrator Sack Thongvanh said he and a council member were the subject of the threats.
In March, the Falcon Heights City Council terminated Hinrichs, citing his angry outbursts and disrespectful language.
The five-member council voted unanimously to terminate the chief, a St. Paul firefighter who worked for Falcon Heights on a paid, on-call basis.
Hinrichs "has consistently violated the policies of the city of Falcon Heights, specifically our policy related to having a respectful workplace," Mayor Peter Lindstrom said. "There have been interactions with employees from various departments where disrespectful language has been used and angry outbursts have been demonstrated."
Hinrichs, who had served as fire chief since 2015, has said that his firing felt like a "witch hunt" based on personality conflicts.
"I've never had any performance review while employed by the city of Falcon Heights," he said. "I had not received any information about any current situation. I was basically blindsided."