(Bloomberg) -- New York City’s transit chief and three other top police officials announced their retirements on Thursday, creating turnover in the top ranks of the department as Mayor Eric Adams tries to focus the department on subway crime and removing people with mental health issues from city streets.

The departures come amid a push announced by Adams this week to involuntarily hospitalize people who are considered too mentally ill to take care of themselves. 

Adams has been trying to make the subway system feel more safe for riders in a system that’s recovered only 65% of pre-pandemic ridership. He’s announced plans to blanket train stations with 1,000 more police officers and aggressively pursue low-level offenses.

Still, transit crime is up 43% between January and October compared with the same period a year earlier, according to data on total major felonies in the transit system from the New York Police Department Transit Bureau. Assaults have increased by 19% and robberies have risen by 33% from a year ago. There have been 9 murders on the system so far, compared to 5 during the same period last year and 1 or less annually between 2009 and 2018.

Read More: NYC’s Subway Police Surge Hasn’t Made a Dent in Transit Crime

Among the NYPD officials departing are transit head Jason Wilcox, a 35-year veteran who ran point on policing the subway at the city combated a spate of high-profile incidents this year. 

Also retiring on December 30 are the NYPD’s Chief of Housing Kathleen O’Reilly, Chief of Special Operations Harry Wedin and Deputy Commissioner for Support Services Robert Martinez.

Wilcox and O’Reilly were appointed to their roles this year. 

Police Commissioner Keechant Sewell said the four were dedicated public servants with nearly 150 years of combined experience. “It was a privilege to serve alongside each of them, and I wish them all the best in their future endeavors,” she said. 

The city’s top uniformed police officer, Chief of Department Kenneth Corey, also left the NYPD this week after more than 30 years. He announced his retirement in October.

--With assistance from Fola Akinnibi and Skylar Woodhouse.

(Updates with crime statistics in fourth paragraph.)

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