Prison officials have launched an investigation into the attack on Lanez, who is serving a 10-year prison sentence.

The rapper was hospitalized after being stabbed 14 times, his Instagram account said. He is serving a 10-year sentence for shooting the hip-hop star Megan Thee Stallion.

In a statement posted to his official Instagram page on Monday – hours after TMZ reported that the artist, whose real name is Daystar Peterson, 32, was attacked by another prison inmate – his team revealed that he was stabbed 14 times. The name of the prison inmate who initiated the attack was not released.