Institute Football Club has made an appeal for help in locating Chairman Bill Anderson's daughter.
Danielle Anderson was last seen at Schönefeld Airport where she was due to board the 10.40am flight to Belfast on Sunday August 18.
A spokesperson for the Derry football club posted the appeal on Facebook .
It read: "Institute Football Club is anxious to hear of any news relating to Danielle Anderson. Danielle is the daughter of our Chairman, Bill Anderson.
"If we could please ask Irish League clubs and supporters to share this post, that would be a fantastic help.
"Everyone at Institute F.C. is thinking of the family and praying for Danielle's safe and speedy return."
In an update on social media, Adam Anderson posted: "She was last at Laggner's Almhütte Berlin from 21:15 to at least 22:30 just outside the airport. If anyone has any more information or who knows someone who might please get in touch."
A spokesperson for the club told Belfast Live: "We are just hoping for her quick and safe return. All help with the appeal is much appreciated."
Sinn Féin MP Elisha McCallion urged the public to share the appeal.
She said: "Please spread this far and wide. I pray that she will be found safe and well soon."
Anyone with information is asked to contact German police on 08006888000.
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