SAN FRANCISCO (CBS SF) — Two passersby detained a man after he allegedly tried to steal a camera from around another man’s neck in San Francisco’s Alamo Square Park on Thursday, police said.

The attempted robbery was reported at about 1:25 p.m. Thursday near the intersection of Hayes and Steiner streets, police said.

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The suspect, described as a 20-year-old man, allegedly approached the victim from behind and tried to grab his camera. Police said a struggle over the camera ensued.

Two passersby stepped in and grabbed the suspect. They detained the suspect until police arrived, at which time he was arrested.

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The victim suffered lacerations to his hand and knee but refused medical treatment, police said.

The victim’s camera was returned to him, police said.

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