The incident occurred on Temple Avenue in Hackensack around 1:30 p.m.
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Authorities say three officers were dispatched to 10 Temple Avenue for a probation welfare check on 24-year-old Elvin Diaz.
It is unclear exactly what transpired next, but Diaz, who sources say displayed a knife, ended up shot several times.
Diaz was rushed to Hackensack University Medical Center, where he later died.
Two officers were also hospitalized as a precaution, but they are not believed to be injured.
No further details are available at this time.
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