By Anica Padilla

ARAPAHOE COUNTY, Colo. (CBS4) — On Wednesday, the Arapahoe County Sheriff’s Office announced one of their K-9 officers had passed away suddenly.

(credit: Arapahoe County Sheriff)

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“It is with great sadness the [Arapahoe County Sheriff’s Office] announces the sudden passing of K-9 Roman,” officials tweeted.

Officials said Roman passed away last Thursday, after complications from surgery for a life-threatening illness.

Back in May, officials said Roman underwent surgery for a twisted small intestine and colon.

(credit: Arapahoe County Sheriff)

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Roman was able to return home with his handler after surgery.

Just last week, Roman posed with officials from CoBank who donated $10,000 towards his vet bills — which total more than $20,000. Advantage Security, Inc. donated an additional $4,000 and Back The Blue K-9 Force covered the remaining $13,000.

On that day, officials said Roman was improving and gaining weight — and was cleared for basic obedience.

He died the next day.

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“Roman, thank you for your service. Rest in peace buddy. We’ll take it from here. #endofwatch,” officials tweeted on Wednesday.

Anica Padilla