Towsontown Boulevard was closed Thursday afternoon at Bosley Avenue in Towson because of a two-car accident, Baltimore County Police said.
The accident, which also altered traffic on Bosley Avenue, occurred at 4:19 p.m., police spokeswoman Julia Hardgrove said.
According to the 911 call, Hardgrove said a vehicle ran a red light and hit another vehicle.
One person was taken by ambulance to an area hospital, Hardgrove said.