Chick hatched and I need help

One of my checks hat for while I was gone and I come home to find chicken hatched but so connected to the leg with its umbilical cord. I left to get something to eat and come back to look like the mama chicken stepped on the check and peered that the yoke come out. The check is not chirping but his breathing and is no longer bleeding I don't know if the blood was just from when the chicks separated from the egg and that was what caused the bleeding or not. Feedback would be much appreciated.