An NYPD recruit with dreams of becoming a cop died early Tuesday following a short battle with leukemia, police said.

Jake Siciliano, 23, was three months into his NYPD training when he was diagnosed with the deadly disease.

The Long Island man died at Mount Sinai Hospital Tuesday a month after he was admitted, his fiance said.

God needed an NYPD officer in heaven, baby, Ashlee Ragusano wrote in a heartfelt message on Facebook Tuesday. Do what you do best.

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Siciliano and Ragusano were engaged on Oct. 1, just weeks before he received the fatal diagnosis.

We had an amazing 3 years, 7 months, and 4 days together, Ragusano wrote. You changed my life for the better, and I would not change a single thing.

Siciliano graduated Lynbrook High School in 2012 and played Lacrosse for Nassau Community College before joining the NYPD.

He was one of 524 NYPD recruits sworn in on July 5 a day after Police Officer Miosotis Familia was killed in the Bronx.

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Siciliano was considered to be on active duty, even after he was hospitalized, police sources said.

Supporters raised more than $17,000 for Sicilianos medical expenses on a Gofundme page set up by friends.

A fund-raiser for the recruit was scheduled for the Craft Kitchen and Taphouse in Lynbrook on Saturday.

Attempts to reach Ragusano and Sicilianos family were unsuccessful Tuesday.