KSDK -- A nationwide tour called attention to missing person cases in the St. Louis area on Friday.
This was a chance to raise hope and awareness about missing person cases that remain unsolved. Several families gathered Friday morning at the Jefferson County Sherrif's Department.
They released close to a dozen balloons, each of them representing a person who went missing.
It's been more than three years since 26-year-old Amanda Jones disappeared from Hillsboro in 2005. The mother of Heather Kullorn also tried to keep hope alive for her daughter, who went missing while babysitting in 1999. Those families said they would not give up hope.
Law enforcement officials who were present did not release any new information about those cases.
The group responsible for the event, the Community United Effort - Center for Missing Persons, was based in Wilmington, North Carolina, and was visiting Missouri as part of a nationwide tour.
Meanwhile, family and friends of Bianca Piper made an extra effort to help police solve her disappearance.
The 'On the Road to Remember Tour' started Thursday in Foley, Missouri.
Piper was walking along a dirt road near her home when she disappeared, on March 10, 2005. She was 13-years-old at the time of her disappearance.