A 1-year-old boy drowned in a pool Thursday evening in Rialto.San Bernardino County coroner’s officials said the boy, an out-of-state resident, was visiting family in the 1700 block of North Vista Avenue about 7:30 p.m. when he got into the pool unsupervised.

Paramedics took him to Loma Linda University Medical Center where he died at 8:25 p.m.

His name was not released because his relatives haven’t been notified.