CLAYTON (BCN) -- Police are releasing a sketch of a man who allegedly sexually assaulted a 10-year-old boy on the afternoon of June 19 in a culvert near Clayton City Hall.

After the boy reported assault at 3:45 p.m., Clayton and Concord police immediately began to search the area using a police dog and officers on motorcycles.

The attacker was described as a 6-foot-tall black man between 40 and 50 years old. He was reportedly wearing teal-colored hospital attire, including a teal cap, teal shirt, teal pants and medical-type shoe covers.

Police say he was also wearing a medical mask and medical gloves. The boy said the man had no hair on his arms and squinted his eyes.

The victim was interviewed by forensic specialists and helped create a composite sketch.

Anyone with information about the case is urged to call the Clayton Police Department at (925) 673-7350.

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