Some morning subway commute madness: A downed power line has caused problems with the 4 and 5 subway lines. According to initial reports, a subway entering the Wall Street station hit a low hanging power line. The wires sparked and fell next to the train car. The train's passengers need to be evacuated, but power needs to be cut off first. Additionally, when the wire fell, smoke filled the station, which was also evacuated. Here's the MTA's alert: "Due to hanging cables at the Wall Street Station, there is no 4 and 5 train service between the Nevins Street Station and the Brooklyn Bridge-City Hall Station in both directions. Please expect delays in 4 and 5 train service at this time."