Police in Delaware are searching for a gunman after three people were injured following a shooting at a cookout held on the campus of Delaware State University last night. What's more, the campus was placed on lockdown after a second shooting took place just hours later.

A school spokesman told the Associated Press that the shooting occurred around 8 p.m. at a fraternity and sorority cookout authorized by the university. The victims were transported to Dover, De.'s Kent General Hospital with non-life-threatening injuries. NBC Philadelphia reports that the other shooting happened about five hours later at the University Courtyard apartments. No one was injured.

According to the Associated Press, no arrests had been made as of 2:30 a.m. this morning. University President Harry L. Williams, who said the victims have not been identified because it's unclear if they're students, said that authorities will "aggressively continue their investigation" until one is made. 

The Associated Press adds that other agencies including police in Dover and the Delaware State Police were aiding the investigation.

[via Associated Press and NBC Philadelphia]