THOUSAND OAKS, Calif. (AP) — Authorities say 19 children were sickened by exposure to a chemical at a Southern California swimming pool.
The Ventura County Fire Department says the swimmers were overcome by fumes Wednesday evening at Daland Swim School in Thousand Oaks, north of Los Angeles.
Some reported having trouble breathing but their problems are non-life-threatening.
A dozen children, aged between 11 and 15, were taken to hospitals, including several who at first were described as being in a critical state.
However, sheriff's officials say all are expected to recover.
The Los Angeles Times says authorities believe an equipment malfunction began pumping extra chlorine into the pool.
A call to the swim school wasn't immediately returned.