SAN FRANCISCO (CBS SF) — Police have released surveillance videos of a man who allegedly attacked and bit off the finger of a bartender at a San Francisco bar.

It happened July 17 at about 2:15 a.m. at the Silver Clouds Karaoke bar located in the 1900 block of Lombard Street in the Russian Hill neighborhood.

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Police say the bartender was trying to close up when a male customer, who had been drinking there earlier, attempted to re-enter.

The customer became irate when the bartender told him he couldn’t come in and began kicking the door. He even tried to come in through a window.

When the bartender went outside to confront him, the customer attacked him. Police say the customer bit and severed one of the victim’s fingers.

The suspect left the scene with a group of friends. He is described as a 180-pound, 6 foot tall Hispanic male, with black hair and brown eyes.

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The victim was taken to a hospital and treated for his injuries which included contusions to his head, and an amputated finger.

VIDEO 1:

VIDEO 2

Police have released 2 surveillance videos, in hopes they will lead to the capture and arrest of the suspect.

In the first video, the suspect is fully clothed and appears to be eating a sandwich. In the second, he removes his shirt and begins tussling with a man police believe is one of his friends.

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Anyone with information is asked to contact San Francisco Police Department or call the anonymous tip line at (415) 575-4444 or text-a-tip to TIP411, beginning the text with SFPD.