06/06/2005 at 02:25 PM EDT
The government in Aruba on Monday asked thousands of civil servants and tourists visiting the island to join a massive search effort to look for a missing Alabama teenager, Natalee Holloway, the Associated Press reports.
The 18-year-old honors student went missing on May 30 while on a trip with more than 100 other classmates celebrating their high school graduation.
Most of the Dutch Caribbean island's 4,000 public employees were asked to meet at a sports arena at 2 p.m. Monday to be briefed on "a systematic search," police commander Trudy Hassell said.
"This effort is a national effort. We feel with the family," Hassell said, according to AP.
On Sunday, two security guards who worked at a hotel near where Holloway was staying were arrested. Attorney General Caren Janssen would not disclose the exact charges, but said: "The charges have a relationship with the disappearance. There is a reasonable suspicion they may be involved."
The two men in custody were not among three other men described Saturday by police as "persons of interest," according to police spokesman Edwin Comemencia. The three men, described as students, told police they dropped Holloway off at the hotel where she was staying on May 30 at 2 a.m. Holiday Inn employees, however, say security cameras did not record her entry.
Holloway, who is 5'4" and blonde, spent her last night at a beach concert featuring Boyz II Men and Lauryn Hill, then went out for dinner and dancing. She did not show up for her flight home hours later. Police found her passport in her hotel room with her packed bags.
The Aruban government and local tourism organizations have offered a $20,000 reward for information leading to Holloway's return. Her family in Alabama have offered another $30,000.