San Francisco shooting in Union Square tourist area leaves at least 1 dead

Union Square is home to high-end retail stores, such as Louis Vuitton and Gucci

At least one person has died following a shooting at a busy shopping and tourist area in San Francisco on Thursday, according to multiple reports.

San Francisco police closed a "wide area" around Union Square, which is home to high-end retail stores, such as Louis Vuitton, Gucci and Chanel. The public was asked to avoid the area as authorities conducted an investigation.

"Avoid the area of Union Square (Stockton & Geary) due to Police Activity. Emergency crews are on scene," the San Francisco Department of Emergency Management tweeted at 8:24 p.m. ET. "Expect traffic delays, consider alternate routes, and allow for additional travel time."

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The complete circumstances of the shooting which began around 8 p.m. EST were not immediately known, according to FOX 2 of the Bay Area.

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Authorities said the incident began as an altercation and at least one person has been detained. The shooting victim was originally transported to a local area hospital with life-threatening injuries.

The police department's homicide detail has taken over the investigation, according to the station.

This is a developing story