(CNN) Up to half of Chicago's rank-and-file police officers could be placed on unpaid leave because of a dispute between their union and Mayor Lori Lightfoot over a city requirement for officers to disclose their vaccine status.
The dispute in Chicago is emblematic of tension across the country between unions and employers as cities and businesses seek to enforce vaccine mandates.
Chicago Mayor Lori Lightfoot on Friday said police union president John Catanzara was trying to "induce an insurrection" by telling officers to ignore a deadline to report vaccine status.
The mayor said the law department filed a complaint against the union, saying that Catanzara was "encouraging a work stoppage or strike.".
Officers in Chicago had a deadline of midnight Thursday to disclose their vaccine status to the city or be placed on unpaid leave, Catanzara said.
Lightfoot said officers should report for duty until they're told by supervisors that they've been placed on leave.
Eric Carter, first deputy superintendent of police, asked officers to fulfill "their mission and duty as professional police officers. »