SAN FRANCISCO (CBS SF) — A man was critically injured when he was stabbed in the neck with a pocketknife during an altercation in San Francisco’s Tenderloin neighborhood on Tuesday afternoon, police said Wednesday.

The stabbing was reported around 12:35 p.m. near Ellis and Hyde streets.

The 46-year-old victim got into a fight with another man, who pulled out the knife and stabbed him in the neck, according to police.

The victim was taken to a hospital to be treated for his injuries, which are considered life-threatening, police said.

The suspect, described as a man about 40 years old, fled on foot and had not been found as of this morning, police said.

Anyone with information about the stabbing was encouraged to call the Police Department’s anonymous tip line at (415) 575-4444 or send a tip by text message to TIP411.

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