9/27/17 -- The person detained has been confirmed as 36-year-old Corey McClendon

2:50 PM PT -- LAPD has already detained one person in connection with the shooting.

Young Dolph was just shot in Hollywood and is being rushed to a local hospital ... TMZ has learned.

Law enforcement sources tell us the rapper was just outside Shoe Palace at the famous Hollywood and Highland intersection when he was hit ... officers were nearby and responded immediately.

At this time, no arrests have been made and it's unclear how many people may have opened fire.

We're told he suffered multiple gunshot wounds but his injuries appear to be non-life threatening at this time.

It's not the first time this year the rapper's come under gunfire ... back in February his SUV was shot at over 100 times while he was in Charlotte, N.C. Blac Youngsta turned himself in for the shooting in May after a warrant was issued for his arrest.

Story developing ...