BIDDEFORD — Biddeford police say they’re still unable to release the name of a man who was stabbed in the neck Sunday night, and they say he isn’t cooperating with detectives investigating the incident.

Police responded to a report of a stabbing at 96 South St. A 20-year-old male who lives at the address was involved in a fight outside the residence, police said. The man was taken to Maine Medical Center and was admitted in serious condition.

Investigators are still determining exactly what type of weapon was used and who else was involved, police said.