The small female brown bear entered the Pittsburgh Mills mall in Frazer about 9 p.m. Saturday, the Pittsburgh Post-Gazette reported.
Wildlife conservation officers were able to lure the bear toward the entrance doors, where she was trapped between the double doors and shot twice with a tranquilizer gun, officials said.
No one was hurt during the incident and the bear was taken away from the mall, the Pittsburgh Tribune-Review reported.
"It was probably more frightened than anything," said Dan Puhala, a wildlife conservation officer. "For the most part that bear wanted to get away from everybody."