A picture was tweeted showing a bus accident on the Suburban level of the Port Authority Bus Terminal.
A Short Line Bus struck a wall around 5:30 p.m. at the 8th Avenue turnaround inside the terminal.
Four bus passengers suffered minor injuries, but refused medical attention.
The bus driver was taken Roosevelt Hospital for a medical emergency.
Buses are now being allowed back into terminal.
We'll have much more on this story on Eyewitness News at 11 and on 7online.