Prince: Search Warrant Served on Singer's House

Authorities have obtained a search warrant for Prince's house, and in the docs there's an ominous warning ... if the justification for the warrant gets out it could cause others to destroy evidence.

The warrant was issued Thursday in Carver County, Minnesota, allowing cops to search the home in Paisley Park Studios, where the singer lived and died. Our sources say authorities want to see if there's evidence of drugs, correspondence, prescriptions and medical information that could help in the death investigation.

The sheriff's office says in the request for a warrant ... they want to keep the information in the warrant confidential because "premature disclosure of the details provided in the search warrant and its accompanying documents may compromise this law enforcement investigation by causing the search or related searches to be unsuccessful."

Translation ... we know authorities are interested in drugs that were prescribed by doctors and filled by pharmacies, and they don't want evidence tampering.

TMZ broke the story ... our Prince sources say it was known among close friends and family ... he had a Percocet addiction for years.

The judge ordered that the sensitive documents be sealed for 6 months or until the commencement of any criminal case.