MONTGOMERY, Alabama (AP) -- Gov. Bob Riley called for a nationwide travel boycott of Aruba on Tuesday until authorities on the Dutch Caribbean island cooperate more fully with the family of a teenager who has been missing since May.

Riley asked the governors of the other 49 states to join him in urging a boycott of Aruba on behalf of the family of Natalee Holloway, the 18-year-old Mountain Brook High graduate last seen on the island on May 30.

Her mother, Beth Holloway-Twitty, joined Riley at the Alabama Capitol for the boycott announcement.

She contends Aruban authorities have failed to adequately investigate the possible murder of her daughter, who was with a Dutch teenager and two Surinamese brothers on the night she disappeared.

The young men were held for a time but have been released.

Copyright 2005 The Associated Press.