The University of Michigan-Dearborn campus is under a lockdown due to a distraught man who is believed to have a handgun, police said.

Officials said the man is from Roseville.

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Police are in communication with the man, who is inside a car in a parking lot on campus.

A student who said she was studying for an exam at the library told Local 4 she was getting ready to leave the building and was told not to go outside.

No additional details have been released. source