Aruba ? A judge Friday ordered an extended detention of two brothers held in the disappearance of Natalee Holloway after reviewing new evidence in the case of the missing teenager.

Surinamese brothers Satish and Deepak Kalpoe will be detained in separate jails for at least another eight days while prosecutors continue to pursue the investigation. The brothers have been held since Wednesday on suspicion of involvement in Holloway’s death.

A third suspect, Joran van der Sloot, was expected to arrive in Aruba on Friday, a day after a judge in the Netherlands approved his arrest and transfer, the prosecutor’s office said.

Investigators are focusing in part on cell phone calls and text messages between the suspects, prosecutor Dop Kruimel told The Associated Press.

“It’s part of the investigation,” she said, declining to give further details. “We do everything we can to see what happened.”