Hayward school district officials said Thursday that some Hayward High School students fell sick after possibly ingesting marijuana-laced brownies.
The students reportedly ingested the brownies on an AC Transit bus on their way to school and became ill on campus around 9 a.m., police said.
Of the five students involved in the incident, four became sick. Two of them needed medical attention.
Hayward High students told NBC Bay Area what they saw at school.
"She was going crazy, screaming and on the ground like hallucinating," said Jamesea Baldwin.
"Yesterday I was in class in third period and she said she was very thirsty and stuff so then she went to sit down and then she passed out and started having a seizure," said Jordan Clark.
Hayward High School administrators responded promptly to the incident and alerted paramedics and Hayward police.
According to the Hayward Police Department, the student who supplied the others with the suspected pot brownies was identified as a 16-year-old female Hayward High student.
She was later arrested for furnishing marijuana to minors by the school resource officer, police said.
"These students need to stop selling like it’s to the point where people are going to end up dying," Baldwin said. "Someone is going to end up dead one of these days because their bodies aren’t ready for that. And people are gonna go to jail and their parents are gonna be in trouble."
The students who received medical attention were released to their parents.
"You blame the people who made them but you also have to blame the people who bought them too. Because you know what you’re doing when you buy those," Clark said.
None of the five students involved in the incident were at school Thursday, the district said.
School officials are investigating the incident and will be taking the appropriate disciplinary actions, the district said.
A Hayward school district spokesperson told NBC Bay Area that drugs are not an uncommon problem in large schools. The district is fighting hard to prevent drug use by providing counseling and intervention services for students.
NBC Bay Area's Kimberly Tere contributed to this report