Published: Jul 22, 2011 3:42 PM EDT
Updated: Jul 22, 2011 2:40 PM EDT

UPDATE:  The two North Naples girls have been found safe.  Authorities located the girls shortly after asking the public for help in finding them.  The girls are in good condition.

NORTH NAPLES, Fla.- The Collier County Sheriff's Office is asking for the public's help in locating two North Naples girls who have been missing since Thursday afternoon.

Deputies say Kaylin and Alexis Lewis were last seen riding their bicycles in the area of 92nd Avenue North around 2:50 p.m.

Kaylin Lewis is 12 years old and described as white, 5 feet 2 inches tall and 80 pounds with curly auburn hair and brown eyes. She was last seen wearing a blue sun dress and clear sandals. She may be traveling on a blue bicycle.

Alexis Lewis is 9 years old and described as white, 4 feet 11 inches tall and 70 pounds with short brown hair and brown eyes. It is unknown what she was wearing. She may be traveling on a pink and white bicycle.

Anyone with information about Kaylin and Alexis Lewis' whereabouts is asked to call the Collier County Sheriff's Office at 252-9300.