Main Street in Hartford was blocked off Saturday morning near the Gold Building at 777 Main Street after wind blew out a 20th-story window and sent the glass crashing to the street below, police said.
Hartford police and fire officials are on scene and a building inspection crew is on the way. Police said Main Street would be blocked off in that area for a couple hours.
No injuries were reported. It's not clear if anyone was inside the building at the time.
Initial reports were that the window came from the Gold Building itself, but the building at nearby 777 Main Street is an old Bank of America currently under renovation, police said.
The Gold Building, known as One Financial Plaza, was one of Hartford's first high-rise office towers when it opened it 1973.