The family of a missing Oakland business owner is ramping up search efforts across the East Bay, calling on residents to review security footage as volunteers and law enforcement widen the hunt.

About 60 people from the Alameda County Sheriff’s Office joined the search, which began around 8 a.m., with mutual aid teams from Contra Costa and Marin counties also assisting, as well as volunteers, Oakland police, the Alameda County Sheriff’s Office and neighboring search-and-rescue teams. Volunteers have been combing hiking trails, canvassing neighborhoods and checking in with local businesses in hopes of finding any trace of Hillyard.

The family is now urging residents, particularly in Cleveland Heights, Lake Merritt, the Lakeshore District and Crocker Highlands, to check home surveillance systems for possible sightings beginning the afternoon she vanished.

Hillyard is described as 5-foot-4 and about 120 pounds with blonde hair. Police recently clarified she was last seen wearing a white T-shirt, light blue jeans and white sneakers with a black stripe, updating an earlier description of different clothing.

Authorities have classified her as an at-risk missing person due to a medical condition and issued an endangered missing alert Sunday evening, sending notifications to mobile phones across the East Bay days after her disappearance. 

A San Francisco’s Potrero Hill neighborhood, the café was named after his grandfather, Jack Farley, who disappeared in the 1920s. 

The business was later passed to Roger’s son, Chris, and Amy, who helped expand it into the East Bay and local airports. The company describes itself as a community hub built on connection, tradition and shared space, values that many say Hillyard embodied.

In a statement, the business said, "Our hearts go out to Amy and her family and friends during this difficult time. She has been a passionate and active member of the Oakland community for 20-plus years. We hope that she returns safely, and we appreciate any information."

Hundreds of people gathered near Lake Merritt over the weekend for a candlelight vigil, underscoring the growing urgency and widespread concern surrounding her disappearance.

Anyone with information is urged to contact the Oakland Police Department. The family is also asking those with possible video or tips to come forward as the search intensifies.

Fox News Digital reached out to the Oakland Police Department for updates on the search but did not immediately receive a response.