Australia ? Detectives investigating race riots that rocked Sydney last week seized a pistol, ammunition, knives and smoke bombs in a series of raids Monday.

The weapons haul came after police questioned five men detained Sunday night with a container of gasoline and objects for putting together fuel bombs in their car, New South Wales Police said in a statement.

Police Commissioner Ken Moroney said material in the car suggested the men had links to white supremacist groups.

Four of the men were released after questioning and the fifth was ordered to appear in court Jan. 17 on charges of being armed with intent to commit an indictable offense.

Federal authorities said they will begin trying to trace cell phone text messages blamed for inciting the riots.

Police confiscated several cell phones carrying such messages over the weekend, along with weapons, including fuel bombs, swords, knives, baseball bats and a club made from a stick studded with nails.