A chemical leak at a Houston-area water park left dozens suffering from minor skin irritation and respiratory issues Saturday, authorities said.

Twenty-nine people were taken to local hospitals following the incident at Six Flags Hurricane Harbor Splashtown in Spring, the Harris County Fire Marshal�s Office tweeted. Thirty-nine others declined to be taken to a hospital after undergoing decontamination procedures.

KPRC-TV reports that some of those who became sick were children, including a 3-year-old who was hospitalized in stable condition.

The chemicals involved included hypochlorite solution and 35% sulfuric acid, officials said.

�The safety of our guests and team member is always our highest priority and the park was immediately cleared as we try to determine a cause,� Hurricane Harbor Splashtown spokesperson Rosie Shepard said in a statement, according to news outlets. �Out of an abundance of caution, the park has been closed for the day.�

Authorities are investigating the cause of the incident, which they said was contained to one attraction at the park.

�Grateful for the swift action from first responders today at Splashtown,� Houston�s chief elected official, Lina Hidalgo, tweeted. �We�ve issued a closure order to investigate and ensure the park meets all requirements before reopening again.�

(AP)