the Dutch teenager barred by a youth court from becoming the youngest world circumnavigator, has gone missing.
Dutch police have said the girl was first reported missing on Friday.
Police at this stage don't believe she has run off to sea or met with foul play.
Last October the youth court in Utrecht prohibited Dekker, 14, from setting off on an around-the-world solo yacht trip for at least eight months, due to her age and worries for her safety.
It also placed the teenager under the protection of child care officers until July 1st next year.
Dekker's father Dick Dekker is known to have supported her ambitions, while her mother had reservations.
A Dutch teenager barred from sailing solo around the world because of her age has been found on a Caribbean island after disappearing, police say.
Laura Dekker, 14, is in police custody on the Dutch Antilles island of St Maarten, three days after relatives in the Netherlands reported her missing.
A Dutch police spokesman said the girl had been found "safe and sound".
Miss Dekker has been under supervision since a court blocked her bid to be the youngest person to sail the globe solo.
Police said earlier they did not suspect any crime had been committed.
The court order in the city of Utrecht placed Miss Dekker under state supervision, while living with her father, until the end of her school year in July 2010.
After she vanished on Friday, her boat was found moored at its berth and she appears to have left her father's home on her own.
An unconfirmed Dutch newspaper report said she had withdrawn 3,500 euros ($5,000) from her bank account.