UPDATE: Jacksonville officers said a missing 13-year-old girl has been found safe.
She was found an hour and a half after officers issued notice of her disappearance.
Officers thanked everyone for helping spread the word.
Officers were asking anyone who had seen or heard from Isabel Oliva since 10:30 p.m. on Saturday to give them a call right away.
Freeze warning in effect for Jacksonville Monday morning
Isabel is 5 feet and one inch tall and weighs 100 pounds. She has long black hair and brown eyes.
Police did not know if she was walking or left in a car.
They are asking everyone everywhere to be on the lookout for her.
Anyone who knows anything is asked to contact the Jacksonville Sheriff's Office at 904-630-0500 or email us at JSOCrimeTips@jaxsheriff.org.
To remain anonymous and receive a possible reward up to $3,000 contact Crime Stoppers at 1-866-845-TIPS.