Electricity Experiment Question?

I did an experiment the other day. I connected two wires (the ones with alligator clips on the ends) to a 9 volt battery. The other ends of the wires were clipped on to the sides of a cup (filled with saltwater- very salty saltwater) and a paperclip was clipped between the wire and the cup on the inside side of the cup. The paper clips were submerged in the salty saltwater. Bubbles started to rise from the area around the negative-charged paperclip. After a long time, the water turned orange and then, eventually, a dark brown-blue color. Was this rust? Can someone please explain why this result happened?