SYDNEY, Australia (AP) -- A special police unit dealing with threats to the Sydney Olympics has arrested a man and charged him with possessing a cache of explosive substances, a police spokesman said Tuesday.

 The Olympic Investigation Strike Force also seized what it said were racist documents after arresting the 28-year-old man in Sydney last Tuesday, the spokesman said on customary condition of anonymity.

 The man, who has changed his name to Martin Bormann, appeared in court last Wednesday and was remanded in custody. Bormann was Nazi leader Adolf Hitler's secretary.

 The man was due to appear in court Wednesday charged with two counts of possessing explosive substances, one count of possessing an article with intent to destroy property and one count of possessing a knife in public.

 The Daily Telegraph, a Sydney tabloid, reported Tuesday that police found hydrochloric acid, chlorine and petrol at the man's home. He also had stored petrol and fertilizer in an underground bunker west of Sydney, the paper reported.

 The 2000 Olympics begin Sept. 15.