"At 14:05 o'clock we received a telephone from North Ranch," said a spokesman from Ventura Country Sheriff's Department as reported by U.S. Magazine, Sunday (15/01/2012).
"A patient was sent to Los Robles hospital for emergency treatment," he added.
According to TMZ, 50-year-old actress had been taking a combination of drugs and alcohol. His sister decided to call the paramedics and hospital care.
Locklear, who recently called as the fiancee of Jack Wagner, last seen watching a basketball game Los Angeles Lakers at Staples Center.