Rap star Juice Wrld passed away today, MTO News can confirm. 

The 21 year old rapper suffered an acute medical ailment while inside a Chicago airport. The symptoms of his "acute attack" are consistent with a drug overdose.

He was rushed to the hospital and unfortunately never recovered.

Here's how TMZ is reporting it:

Juice Wrld, the talented rapper whose career was just taking off, is dead after suffering a seizure in Chicago's Midway airport ... TMZ has learned.

Juice's flight from Cali landed early Sunday morning and, after deplaning ... witnesses tell us he suffered the seizure while walking through the airport. Law enforcement sources say he was bleeding from the mouth when paramedics got on scene.

We're told Juice -- real name Jarad Anthony Higgins -- was still conscious when he was rushed to a hospital. However, he was pronounced dead a short time later at the hospital. The cause of death is unclear at this time.

Many on social media suspect that the rapper's death may have been a drug overdose - as the rapper spoke openly and often about his drug use.

Since his passing, millions of tweets have come up, suggesting that he OD'd. Here are a few: