Natalee Holloway's mother said Aruban prosecutors told her over the weekend that they planned to interview her daughter's former Alabama high school classmates about the teenager's disappearance.
And upon hearing the news, Beth Holloway Twitty (search) repeated her charge that officials in Aruba have botched the case.
"The reason they want to ask follow-up questions to those students from Mountain Brook is because of the holes in their original line of questioning and because of questions they forgot to ask the first time," she told The Associated Press in a telephone interview from Philadelphia.
On Friday, Aruban prosecutors said in a statement they would conduct a new round of interviews in their investigation of Holloway's May 30 disappearance.
The statement said there are people living in the United States who have to be interviewed again. They said several aspects need more attention.
"You have to have an open mind and investigate all leads, that would be the professional thing to do," Aruba's chief prosecutor, Karin Janssen (search), told the AP.
Twitty has been a harsh critic of the investigation. During a visit to the Dutch Caribbean island last week, she called for the resignation of several top law enforcement officials.
It was Twitty's first visit to Aruba (search) since early September after a court ordered the release of three local youths who were the last people seen with her daughter.
Holloway disappeared just hours before she was to end a vacation celebrating her graduation. She was last seen leaving a bar with Dutch (search) national Joran van der Sloot and Surinamese brothers Deepak and Satish Kalpoe.
They were arrested June 9 but released after a court ruled there was not enough evidence to hold them. No one has been charged, and extensive searches for Holloway have failed to find any clues about her whereabouts.
The Associated Press contributed to this article.