BOSTON (CBS) – Boston police are looking for a man who they say sexually assaulted a young girl in the hallway of a South End apartment building.

The department released surveillance photos of the man who they believe is responsible for the attack that happened at about 7 p.m. Saturday in a common hallway on Hammond Street.

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The person wanted in connection with a sexual assault in the South End. (Image credit: Boston police)

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He’s described as a white Hispanic man in his 20s, about 5 feet 7 inches tall with a slim build. Police said he was wearing a gray sweatsuit at the time.

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Anyone who may have information is asked to call police.