Lorain police say a 3-year-old boy is in "extremely critical condition" after apparently sustaining "suspicious injuries" last weekend.

Officials at the Mercy Hospital emergency room called police around 3:09 p.m. Sunday. Staff members told officers the child's mother had called 911 and claimed his 1-year-old brother pushed him over a diaper box before she found him unresponsive.

However, authorities say the mother's story is inconsistent with the child's injuries, and investigators believe he was deliberately injured.

The boy was later taken to MetroHealth Medical Center. His exact injuries are unknown at this time.

Officials say no charges have yet been filed in the case, but arrests are expected.