MADISON, S.D. (AP) — Authorities have charged a Madison man in connection with the death of a 3-year-old boy.

Police say 21-year-old Jacob Meinders faces two counts of aggravated assault on a child, along with alternate child abuse counts. He could face up to 30 years in prison if convicted.

It wasn't immediately clear if Meinders has an attorney, and a telephone listing for him could not be found.

The Daily Leader reports that police on Sept. 29 responded to a report of an unresponsive child at a Madison residence. The boy was reported to have fallen down a flight of stairs. He was taken to a Sioux Falls hospital, where he later died.

Police Chief Justin Meyer says the investigation is ongoing and authorities expect to file additional charges.

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.