Debris on Subway Tracks at DeKalb Avenue Causes Rush-Hour Delays on B and Q Trains

Falling debris is causing subway service changes for the rush-hour commute Monday.

The MTA says crews are on the scene at DeKalb Avenue, clearing concrete that fell onto the tracks of the B and Q lines.

Southbound B trains are now running express on the D line starting from Grand Street and ending at Bay Parkway.

Southbound Q trains are now running on the R line from Canal Street to DeKalb Avenue.

Expect delays in both directions.

The agency says there were no injuries after the ceiling collapse, and crews are investigating the cause.