An FBI analysis of fabric collected from a crab trap off Aruba showed the material did not match clothing worn by missing American Natalee Holloway, prosecutors said Tuesday.

The fabric was recovered in January by divers in about 90 feet of water as they searched for the body of the missing woman, the Aruban public prosecutor's office said in a statement.

Click here for photos from the case.

The FBI compared the material to a blouse worn by Holloway, who was 18 when she disappeared on the final night of a high school graduation trip to the Dutch Caribbean island in May 2005. The results "showed that the two materials were not a match," the statement said.

Special Agent Ann Todd, a spokeswoman for the FBI Laboratory in Quantico, Va., said the lab could not comment on the case.

Holloway, of Mountain Brook, Ala., was last seen leaving a bar in the Aruban capital of Oranjestad with a Dutch college student and two Surinamese brothers. Extensive searches have found no trace of her.

Earlier this month, judges rejected an attempt to arrest the Dutch student, Joran Van der Sloot, for a third time in her disappearance. He was released due to insufficient evidence the first two times he was arrested.

Aruban prosecutors had sought to detain him based on hidden-camera recordings captured by a Dutch TV crime show. In the video, Van der Sloot said Holloway collapsed on the beach after they left the bar and he called a friend to dump her body at sea.

Van der Sloot has said he was lying when he made those statement and insists he had no involvement in her death.