Three Huntington Beach, Calif., senior citizens were hospitalized Saturday after they were fed pot brownies at a memorial service for their friend.

Two Huntington Beach and Newport Beach women, both 71, and an 82-year-old man ended up in the emergency room at Hoag Memorial Hospital in Newport Beach Saturday night with “nausea, dizziness and [an] inability to stand unassisted,” according to a report on the Huntington Beach Police Department’s Facebook page.

According to the report, a tray of brownies with medicinal marijuana was served during the ceremony, but no one was aware of the added ingredient.

“Our understanding is the person who passed away consumed brownies with medical marijuana in them, and apparently somebody put out a tray maybe in honor or tribute to that person, but didn’t tell everybody what was in them. And people were consuming the brownies without knowing they had the marijuana in them,” Lt. Russell Reinhart of the Huntington Beach Police told ABC News affiliate  KABC in Los Angeles.

All three people have since been treated and released.