An active shooter was reported at Florida State University's campus in Tallahassee, according to the school's alert system.
A nearby hospital has said it is treating people affected by the shooting.
Sarah Cannon, a spokesperson with Tallahassee Memorial Healthcare, said the hospital cannot yet confirm the number of people in its care and said the details are still unfolding.
Police were at the scene or on their way around noon (US time).
Students and staff were instructed to continue to seek shelter and await further instructions.