An ambulance responded to Riverhead High School for the third time in two weeks related to a student needing medical help for a possible drug-related incident.

Riverhead Volunteer Ambulance Corps Assistant Chief James Alfano says a boy needed assistance Monday after admitting to ingesting an edible.

“He did say he was having some trouble breathing and was dizzy, so that’s definitely signs of some drug involvement or ingestion,” Alfano says.

The incident comes after two other students passed out in school, resulting in the school nurse administering Narcan.

All three students were transported to the Peconic Bay Medical Center.

Long Island Council on Alcohol and Drug Dependence Executive Director Steve Chassman says the use of Narcan means it’s likely that the drug contained some form of opioid.

He says opioid use is a major problem and has increased during the pandemic.

It is not known what potentially harmful substance could be going around the school.

“It can be any school district on any given day,” says Vice President of Adolescent and Residential Services at Outreach House John Venza. “It knows no boundaries.”

Riverhead police are investigating all three incidents that happened at the school.

They say it appears they are unrelated because two were self-induced and not all were caused by opioids or fentanyl.

The district sent a letter to parents saying in part: “We will be hosting a virtual assembly for students about the dangers of alcohol and drug usage.”

Riverhead police sent a release Tuesday saying that medical and social services are available at the school.