A US female teacher shot dead three people and wounded three others after learning she had been denied tenure at an Alabama university, school officials and local media said.
The incident happened on Friday at the University of Alabama in Huntsville, and college spokesman Ray Garner told reporters that police had arrested one person and detained another.
"At this point we have three dead, three confirmed people who are dead," Garner said. "We have three dead and three wounded," he added.
Garner said two of the three people injured in the shooting remained in critical condition while a third was in stable condition.
Local television WAFF, citing local authorities, said the shooter was a female staff member who had opened fire after learning at a biology faculty meeting that she would not be granted tenure.
The television station said all three fatalities were staff members at the university.
The local Huntsville Times reported that a female biology professor had been taken into custody and that her husband had been detained.
Erin Johnson, a second-year student, told the newspaper that a biology faculty meeting was underway at the Shelby Center when she heard screams coming from one of the rooms.