No illegal drugs were found at the home where singer Teena Marie's body was discovered yesterday ... law enforcement sources tell TMZ.
We're told officials searched Teena's home in Pasadena , CA -- but only found some herbal medication -- and we're not talking marijuana.
We're told an autopsy and toxicology tests will be performed on her body later this week -- but so far, officials are leaning towards the theory that she died of natural causes.
As we previously reported, Teena -- once considered Rick James' protégée -- suffered a grand mal seizure just one month ago.
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