Updated

Officials say a woman is in critical condition after a large tree branch fell and hit her on the head while she and her children were visiting a San Francisco park.

The San Francisco Chronicle reports (http://bit.ly/2aRBnoU ) that the 36-year-old woman was inside Washington Square park with her two small children Friday afternoon when she was hit by a 100-pound tree branch.

San Francisco Fire Department spokesman Lt. Jonathan Baxter says the branch fell on the woman from a distance of about 50 feet. He says paramedics rushed her to a hospital where she is in critical condition with a head injury.

Baxter says the Department of Public Works was sending an arborist to the park in the North Beach neighborhood to investigate why the branch gave way.

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Information from: The San Francisco Chronicle, http://www.sfgate.com