A seven-year-old boy was caught vaping last week during class at a Wisconsin elementary school, police report.

The second-grader, cops say, was spotted by a teacher last Tuesday using a SMOK Novo vaping device inside Country Dale Elementary School in Franklin, a Milwaukee suburb.

When questioned by school officials, the boy said that he took the device, which measures about three-and-a-half inches in length, from his mother’s purse.

During a police interview, the boy’s mother said that the vaping device contained CBD oil. It is unclear how the child knew how to use the device, which retails for less than $20.

The boy was removed from school by child protective services workers who transported him to a local hospital for an examination. The child was subsequently returned to his mother’s care.

No charges were filed in connection with the vaping incident, police report.

School administrators, however, took the opportunity to email parents to express their “concern about the national vaping epidemic.”