A dozen children were taken to the hospital after an incident at a YMCA pool in Mississippi on Sunday, according to reports.
Twelve children were transported to Children’s of Mississippi after they swam at a birthday party, WLBT-TV reported.
The Flowood Police Department said it received a report around 2:30 p.m. of children choking after swimming in the pool.
Police chief Rickey McMillian told the NBC affiliate that there was an issue with a pump.
"From what I’m told, it was a pump issue that after the chlorine was poured into the pool, the pump wasn’t circulating it and they realized it right before the party which caused extra fumes," McMillian said,
The 12 children were in "relatively stable" condition, but "most are admitted and monitored very closely per the E.R. doctor on duty."