Police in San Francisco are investigating what officials call a "suspicious" death after a woman's body was found in Golden Gate Park on Sunday night.

Officers responded to Golden Gate Park in the area of 22nd Avenue and Fulton Street for a report of a dead person, the San Francisco Police Department reported. Just before 7:45 p.m. local time, an unresponsive female was located and declared dead on the scene, police said.

The body was found near the annual Outside Lands music festival in Golden Gate Park, which took place over the weekend.

Police said the San Francisco County Medical Examiner declared the person's death suspicious. The circumstances and cause of the woman's death was not immediately released.

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'A dog walker found her'

The Office of the Chief Medical Examiner identified the person as 37-year-old Kelly Brock Koike of San Francisco, local outlets ABC 7 and KRON 4 reported.

According to ABC 7, the woman's mother, Roya Koike, spoke with the coroner who told her police found her daughter in a duffel bag.

"A dog walker found her," Roya told the outlet.

USA TODAY has reached out to the medical examiner and San Francisco police for more information.

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Body found near weekend Outside Lands concert

The victim's body was found near the Outside Lands concert, a three-day event that ended Sunday evening around 9:35 p.m. local time.

As of Monday night, police said no arrests had been made in connection to the case, which remained under investigation by homicide detectives.

Anyone with information is asked to call San Francisco police.

Natalie Neysa Alund covers breaking and trending news for USA TODAY. Reach her at [email protected] and follow her on X, the platform formerly known as Twitter @nataliealund.