Authorities said the young girl was staying with her aunt when she managed to slip out of the apartment unnoticed. She was later found in a retention pond.

An 8-year-old child with autism drowned Monday evening in a south Houston retention pond, Houston police said. The child was in an apartment in the 13500 block of Hycohen with her aunt and another child when she left the apartment,

Police were called to Hycohen Road, not far from the South Freeway, shortly after 6 p.m. Officers found an 8-year-old girl who had fallen into a retention pond in th