Warning: Videos below might be disturbing.

Several dangerous incidents have been reported involving people dancing to one of Drake’s latest songs, “In My Feelings.”

Instagram user theshiggyshow started the popular dance challenge after posting his choreographed dance moves to the song online, according to Fox 8.

However, some participants added some risky elements to the dance, which caught the attention of the National Transportation Safety Board. The NTSB issued a warning regarding the phenomenon on both July 23 and July 27.

Many fans, including celebrities, have made their own dance videos for the challenge, called #theshiggychallenge, or #inmyfeelingschallenge.

The challenge quickly moved to more extreme level. Some people were seen on camera jumping out of a moving vehicle, climbing on a roof, or standing on a moving motorcycle and dancing to the song. Some people got hurt.

22-year-old Jaylen Norwood from Florida was planning to jump on a car hood and keep dancing, but he slipped on an oil slick right before the car hit him, according to Fox 8. Luckily, he only had minor injuries.

Barbara Kopylova was another who took on the challenge, but she immediately failed and was hurt after hopping out of her car from the driver’s seat. She later posted the video on Twitter and wrote, “I almost died.”

The National Transportation Safety Board (NTSB) also put out a serious warning on its blog for those who might want to impress others by doing the challenge.

“If your local law enforcement agency is among the many cracking down on distracted drivers, the last thing you want to do is post evidence of you and your friends breaking the law,” wrote Nicholas Worrell, Chief of NTSB Safety Advocacy Division, in a