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LAKE WORTH (CBSMiami/AP) — A man who flagged down a Palm Beach sheriff’s deputy is accused of slugging him in the face.

Investigators said the deputy was conducting a business check early Sunday morning when he was flagged down by a man in an alleyway. The report says the man “ambushed” the deputy, striking him on the right side of the face with a blunt object.

The man ran and the deputy was treated at a hospital.

On Tuesday, Gerlo “G-Lo” Ulysse, 27, was arrested and charged with aggravated assault on a law enforcement officer with a deadly weapon.

Ulysse will make his first appearance in court Wednesday.

(© Copyright 2017 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)