A 15-year-old schoolgirl in Fushimi Ward in Kyoto, Japan was arrested after she was caught using marijuana since January.

The third-year middle-school student was sent to the hospital on March 1 after her parents noticed and got worried when she became agitated and violent.

The results of the girl’s urine test came back positive for marijuana use and other controlled substances, according to Fuji News Network as translated by SoraNews24.

Her mother immediately searched her room and discovered 7 grams (0.25 ounces) of dried marijuana and two tablets of MDMA, commonly known as ecstasy.

Speaking to the police, the schoolgirl admitted to using the drugs and explained, “I’d been feeling stressed and couldn’t sleep,” further citing family problems as the reason for her unease.

She added, “and I read on the Internet that smoking marijuana can help you sleep well, so I got interested in it. I met up with people who I’d met on the Internet and bought it from them.”

The authorities have launched their investigation in identifying and prosecuting the people who sold the drugs to the girl.

As part of Japan’s tight law related to drugs, the girl has been placed under arrest on suspicion of violating the Cannabis Control Law.