(CNN) -- Searchers combed the Dutch Caribbean island of Curacao for traces of a U.S. diplomat missing for nearly a week, a State Department spokesman told CNN Thursday.
James Hogan, 49, left his residence late last Thursday night, telling his wife he was going to take a walk. He has not been heard from since, spokesman Ian Kelly said.
Hogan's wife reported him missing Friday.
U.S. diplomatic security is working with authorities in Curacao and the U.S. Navy and Royal Dutch Navy are aiding in the search for the vice consul.
Sniffer dogs were used Wednesday, when passers-by found blood-spattered clothes on Baya Beach, a spokeswoman for the prosecutor's office, Ludmila Vicento, told Radio Netherlands. The clothes match descriptions of clothing that Hogan's wife said he was wearing, the spokeswoman said.
Technicians prepared to comb the sea floor with a robotic device.
Hogan arrived on the southern Caribbean island in August 2008 for a two-year assignment.
Curacao, the headquarters of the Netherlands Antilles government, lies about 40 miles (64 kilometers) off Venezuela's coast.
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