UPDATED - 4:06 p.m. ET
CCSU president Jack Miller, during a present conference Monday afternoon, praised the security systems on campus and the speed with which law enforcement responded.
"Everybody was brave and they were calm," Miller said. "All systems worked as the University hoped it would."
Local law enforcement confirmed that three people of interest are currently in custody. Chris Cevoni, chief of the CCSU's campus P.D., said they couldn't confirm all three were CCSU students, but that all three were of student age.
"We received a 9-1-1 call from someone concerned that a person was wearing camouflage possibly carrying a sword-like weapon or a handgun," Cevoni said.
Police are still investigating the incident. No charges have been filed yet and no weapons have been recovered either.
"Possibly it could have been a Halloween costume, that's what we're looking into," Cevoni said.
Police in New Britain, Conn., responded to a report of a possible gunman at Central Connecticut State University. The school announced a campus emergency on its website.
A spokeswoman for CCSU said that the campus emergency was not a shooting.
The fact that there is soo many cop cars on campus! #stayinside #besafe #ccsu
Olivia Mavilla
@livmav24
The fact that there is soo many cop cars on campus! #stayinside #besafe #ccsu
There were reports, however, of a man seen walking through campus wielding a knife and a gun.
A student told NBC that they saw the man heading towards a residential hall carrying a gun, Japanese-style sword, kneepads, body armor, paintball goggles and multiple clips or magazines. Though it has yet to be confirmed.
SWAT flying towards James Hall on CCSU campus
George Colli
@GeorgeColli
SWAT flying towards James Hall on CCSU campus
Students and faculty were told to remain indoors and stay away from the windows while state police search the campus.
We in here deep #CCSU
Black Sinatra
@MackinAintEazy
We in here deep #CCSU
Some attempted to barricade themselves in classrooms or dorm rooms.
More than 12,000 students attend the university.
Armed SWAT members in tactical gear quickly arrived on scene.
And this just arrived on campus #CCSU
Allyson Porter
@allysonporter1
And this just arrived on campus #CCSU
The focus of the police investigation centered around CCSU's James Hall. James Hall is a co-ed dorm that holds a little over 400 students and has two computer labs.
Pic from the scene at #CCSU. #wfsb
Rob Polansky
@rpolanskyWFSB
Pic from the scene at #CCSU. #wfsb
According to NBC, students were then moved from CCSU's James Hall to other residence halls so police contain the suspect.
Some people evacuating into barrows #ccsu
Emily
@emmaalee_
Some people evacuating into barrows #ccsu
Evacuated students from James Hall at @ccsu waiting in neighboring dorm for all clear.
Ryan Hanrahan
@ryanhanrahan
Evacuated students from James Hall at @ccsu waiting in neighboring dorm for all clear.
Pictures surfaced online a little before 2:45 p.m., showing police walking a brightly dressed man in an orange shirt and camouflage shorts out of a residence hall.
They got him!!!!!! #ccsu
Olivia Maffucci
@OliviaMaff
They got him!!!!!! #ccsu
While a second photo showed police escorted another man in shorts and a blue jacket.
Better shot, blue hoodie, black shorts, white male. #ccsu
Arturas Rosenbacher
@Arturas
Better shot, blue hoodie, black shorts, white male. #ccsu
According to New Britain Mayor Tim O'Brien, as of 3:00 p.m., one suspect remains in police custody, though it is unclear who. There are no reported injuries.
Man in custody at #Ccsu -- police presence still large @foxct
Jimmy Altman
@jimaltmanFOXCT
Man in custody at #Ccsu -- police presence still large @foxct
The lockdown ended around 3:20 p.m., with the university giving CCSU students the all clear.
.@CCSU lockdown is over. All clear given.
BuzzFeed News
@BuzzFeedNews
.@CCSU lockdown is over. All clear given.
CCSU updates website with all clear.
BuzzFeed News
@BuzzFeedNews
CCSU updates website with all clear.
