A suspect is in custody after a shooting at a Kentucky State University (KSU) in the city of Frankfort, officials say.

"At this time, we are aware of some injuries," Kentucky Governor Andy Beshear said. "We will share more information as available."

It is not yet clear how many people were injured, or if anyone was killed. The KSU campus was placed on lockdown following the reported attack on Tuesday afternoon.

Authorities said they responded to an incident involving "an active aggressor" on campus.

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