A man and a security officer were stabbed in the emergency department lobby at Highland Hospital in Oakland shortly before 2:30 a.m. Saturday, according to the Alameda County Sheriff’s Office. The man, identified by KTVU as Joshua Parks, was reportedly attacked from behind while adjusting a friend’s crutches. Parks told the station he had wounds to his arm, back and neck. The sheriff’s office said he was stabbed four times. A security officer intervened and was stabbed on the left side of the head while trying to detain the suspect, sheriff’s office Sgt. Roberto Morales said. The officer and a sheriff’s deputy later took the suspect into custody. Both injured people were in stable condition, and their injuries were not life-threatening, Morales said. The suspect was booked into Santa Rita Jail on suspicion of assault with a deadly weapon. The sheriff’s office is investigating and has not released additional details. The circumstances that allowed the suspect to bring a weapon into the hospital lobby remain unclear, Morales said. “Although incidents of this nature are uncommon, the safety of the public and those who provide critical medical services remains a priority,” he said.