Chicago:
A university in the southern US state of Mississippi was on lockdown Monday after at least one person was killed in a shooting, Delta State University said.
The university sent out an alert urging students to "stay inside and away from windows" after an "active shooter" was spotted on campus.
"Please take immediate lock down action," the university wrote on Twitter shortly after 11:30 am (1530 GMT).
It later confirmed one fatality in the incident and urged students to continue to hide.
Local media reported that a professor was killed in the shooting.
Delta State is a public university which has over 4,000 students. It is located in the small town of Cleveland about 120 miles (200 kilometers) north of Jackson, Mississippi.