This link is to Mississippi Children's Home Services: http://www.mchscares.org/New%20MCHSCARES/contactus.html

There is an 800 number to call. You might benefit by calling to find out what if anything they can do to help you. You might mention it is not your responsibility to care for them, but otherwise the children are left to their own devices. Tell them you want to do this anonymously if that is you wish.

Good luck.