Six students at Stoneman Elementary School in Pittsburg have been suspended after a fifth-grade girl allegedly brought a pot-laced dessert to school Monday and shared it with her friends, Pittsburg Unified School District Superintendent Barbara Wilson said today.

During an afternoon recess at the school, located at 2929 Loveridge Road, two students told a yard supervisor that several kids were eating a small chunk of a baked treat made with Fruity Pebbles that contained marijuana, officials said.

The supervisor alerted the principal, who called police and paramedics.

School officials identified six children who had tried the treat, including the girl who brought it to school, Wilson said. All knew that it was laced with marijuana, she said.

Pittsburg police Lt. Brian Addington said the portion of the treat the girl had brought was about the size of a marble and the children had been picking off tiny bits of it to try.

Paramedics examined the children and determined that they were fine. None of them showed any signs of being under the influence of drugs and they were released to their parents, Addington said.

The children had not eaten the entire treat and the remaining piece of it was sent to the county crime lab for testing, Wilson said.

Addington said results from the crime lab confirmed today that there was marijuana in the treat, but no other controlled substances.

Wilson said she heard that the girl who brought the treat said she stole it from her sister, who has a medical marijuana card and got it from a medical marijuana club.

Addington said police have not yet confirmed whether the sister obtained the treat legally, but said it doesn’t appear that she was negligent. She had the treat hidden in her purse and it accidentally fell out, he said. He said he doesn’t expect any criminal charges to be filed against her.

Police are leaving it up to the school to discipline the students involved, Addington said.

Wilson said the children who tried the treat have been suspended for one day because they knew about an unsafe situation and didn’t tell authorities. The girl who brought the treat to school will be suspended for a longer period of time and could face disciplinary action, Wilson said.

Addington said all the children involved were described as good students who appear to have made a poor choice that afternoon.