It happened around midnight at the Morgan Crossing Apartments on Chestnut Crossing Drive.
When officers arrived, they found the 35-year-old victim lying on the ground with gunshot wounds to his upper and lower body.
A second victim, a 23-year-old, flagged down an officer in the area of Malvern Avenue and Chestnut Hill Road with a gunshot wound to his lower body.
The third victim, a 22-year-old male was found inside of his vehicle with an injury to his head.
The 22-year-old was treated and released. The other two victims remain at Christiana Hospital.
Police say there is no word yet on what sparked this shooting as the investigation continues.
Anyone with information is asked to contact the New Castle County Police Department at 302-395-8110 or visit www.nccpd.com. You can also provide a text tip at: 847411 (TIP411), begin your message with NCCPD and then type your message. Tipsters may call Crime Stoppers as well at (800) TIP-3333.