(CNN) - A Wisconsin elementary school teacher is accused of drinking on the job.
Police in Janesville say the 50-year-old teacher was chaperoning a field trip to a bowling alley when she vomited and passed out.
She was taken to the hospital by her husband. According to police, her blood-alcohol level was three times the legal limit for driving.
The teacher was among several adults responsible for looking after a group of fourth and fifth grade students.
School officials say they plan to investigate.
"We have not started our investigation. The police investigation would be first," said Dr. Katie Schulte, superintendent of the Janesville School District. "Once they're completed, HR will take over the investigation."
No criminal charges have been filed.
The police report was sent to school officials and child protective services.