UPDATE: Chattanooga police say a juvenile has been charged in an incident at Brainerd High School that sent five students to a hospital last week.

Police say the juvenile is accused of distributing an unknown substance that school officials believe was swallowed by the five students.

Police are still working to identify the substance in question.

The juvenile charged is facing four counts of reckless endangerment. 

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PREVIOUS STORY: Five students at Brainerd High School were taken to an area hospital due to illness Wednesday.

Chattanooga police said around 10:00 am, SROs reported that several students were showing concerning physical symptoms.

Four of the students were taken to an area hospital by ambulance, and one was taken by personal vehicle for treatment.


Chief Roddy said the students are expected to be OK. School administrators believe the five students swallowed a substance. 

Brainerd students were held at the school while officers, Hamilton County deputies and the Drug Enforcement Administration investigated.  

"Where did they possibly come from? What is the source? How was it distributed? Those are all of the questions not only the Chattanooga Police Department but our partners with the Hamilton County Sheriff's Office and partners with the Drug Enforcement Administration have all responded here today to get to the bottom of what happened today and what placed these children in danger," said Chattanooga Police Chief David Roddy. 

The exact cause of the illness has not yet been released. Police are working, however, to determine if the students had an adverse reaction to taking a medication.