The TV series “Trauma” is filming scenes in San Francisco today that involve a sniper targeting uniformed authorities.

The NBC fictional series follows a group of paramedics and doctors who save lives under extreme circumstances.

Filming of the sniper episode began today and will continue Friday and early next week. Today’s filming was set to take place between 7:30 a.m. and 6 p.m. near the Palace of Fine Arts, according to the San Francisco Film Commission.

The commission has notified residents that during the filming, there may be numerous emergency vehicles in the area and simulated gunfire.

Friday’s filming will take place between 7 a.m. and 8 p.m. near Alamo Square, and on Monday and Tuesday between 6 a.m. and 7 p.m. near United Nations Plaza, according to the commission.

Leaflets were distributed to residents, and signs will be posted at the filming locations to notify passersby that the scene is a television shoot and not a real emergency.

Separately, a TV pilot, “Facing Kate” is also filming in the city, Film Commission executive director Stefanie Coyote said.

NBC Universal crews were filming exterior shots of City Hall for that show on Wednesday, and planned to take more exterior shots at Union Square today and on a ferry on Friday, Coyote said.

The rest of the pilot was shot in Vancouver, although the story is set in San Francisco, she said.

The show, which would air on the cable channel USA, plans no other filming in the city past Friday. However, if it gets picked up for a full season, “we’d love it to come here and film here exclusively,” Coyote said.

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