The Intelligence Unit of "Chicago P.D.‘s" 21st District will be one officer short for some time this season as original cast member Patrick John Flueger takes a leave of absence from the show to deal with a personal matter, USA TODAY has confirmed.

However, Flueger, who plays Adam Ruzek in NBC's popular police drama, is expected to return later in the season.

While it is not known why the actor is stepping away temporarily from his role, Deadline reported his departure was unexpected, and scripts are being adjusted to reflect his absence.

Flueger’s Ruzek, described as "visceral cop who leads with his heart," has been an integral part of Chicago P.D.'s Intelligence Unit led by Sergeant Hank Voight (Jason Beghe). Following years of an on-off relationship, Ruzek and Detective Kim Burge

See Full Page