It happened around 1:15 Sunday afternoon on the 200 block of South Jackson Street.
Upon arrival officers found a man in his 20s with multiple gunshot wounds to his body.
He was taken to Christiana Hospital in critical but stable condition.
No motives or suspects have been named.
Anyone with information is asked to contact Delaware Crime Stoppers at 1-800-TIP-3333 or online at www.tipsubmit.com.