NEW YORK CITY, NY (TNND) — Two teenage girls were found dead on the roof of an incoming J train at the Marcy Avenue station in New York City early on Saturday. The two teens allegedly were subway surfing, a deadly trend popularized on social media among New York City youth, according to authorities.

Officers responded to a 911 call a little after 3 a.m. about the girls’ unconscious bodies at the Marcy Avenue station in Williamsburg. The two girls were pronounced dead at the scene.

The names and ages of the victims have not been released.

“It’s heartbreaking that two young girls are gone because they somehow thought riding outside a subway train was an acceptable game,” Demetrius Crichlow, the president of New York City Transit, said in a statement on Saturday.

Hours after the girls’ bodies were discovered, the Marcy Avenue station returned to running as usual.

Subway surfing, where people ride on or hang from the sides of trains as they run, has been around for more than a century since subways began operating in the country. In recent years, the act has become more deadly, especially among youths who are inspired by sensational videos of people subway surfing on social media.

In August, three people died while subway surfing, according to police data. Among the deaths is a 15-year-old boy found at Queensboro Plaza in July, on top of a 7 train.

Six people died from subway surfing in 2024, up from five deaths in 2023. This reflects an increase from 2018 to 2022, where the five-year period only saw five deaths.

The Metropolitan Transportation Authority and New York City and state officials have worked to deter young people from subway surfing. The police have used drones since 2023 to stop subway surfers. To remove and prevent subway surfing videos from going viral on social media, the MTA has worked with social media platforms such as Instagram and TikTok.