Mystery shrouds death of Google engineer found in water near Sunnyvale trail

File photo of generic hospital emergency room. Close up of sign for emergency department in hospital File photo of generic hospital emergency room. Close up of sign for emergency department in hospital Photo: ERproductions Ltd / Getty Image Photo: ERproductions Ltd / Getty Image Image 1 of / 28 Caption Close Mystery shrouds death of Google engineer found in water near Sunnyvale trail 1 / 28 Back to Gallery

A woman found dead last week in the San Francisco Bay off a hiking trail in Sunnyvale was identified as a 23-year-old Google software engineer, but the cause of her death remained a mystery on Monday, officials said.

Chuchu Ma of Mountain View was found Friday in the water along the Bay Trail by a dive team from the Santa Clara County Sheriff’s Office, according to the Sunnyvale Department of Public Safety.

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The circumstances surrounding Ma’s death remained unclear Monday and authorities said they are waiting for an autopsy report to determine if foul play was involved, the Sunnyvale Department of Public Safety said.

“Chuchu was an excellent software engineer in our developer product team. We are devastated to learn of her passing, and our deepest condolences are with her family and friends,” a representative from Google said in a statement.

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Ma was reported missing from Mountain View.

Sarah Ravani is a San Francisco Chronicle staff writer. Email: sravani@sfchronicle.com Twitter: @SarRavani