The centre-back has denied suggestions that the break-in in Recife was preceded by a night of strip poker with a group of women
Six players had money and possessions taken from their room in the aftermath of la Roja's 2-1 Confederations Cup win over Uruguay on June 16 and officials of the Golden Tulip Hotel consequently opened an investigation into the matter.
Globoesporte claimed on Monday that the quest had revealed that the reigning European and world champions were partying and playing strip poker with a group of women before the robbery, but Pique has stressed there's no truth in this suggestion.
"These are all lies. They are trying to complicate other people's lives. The football federation will take up this matter," Pique told Cadena Cope.
"This is all a very unpleasant and unwelcome experience. This situation will be resolved, though. Lies are always exposed at some point."
Spain are currently preparing for the semi-final match against Italy on Thursday, with the winner to face either Brazil or Uruguay in the tournament's finale.