Rapper Tory Lanez has said he was stabbed 14 times while serving his prison sentence for shooting hip-hop star Megan Thee Stallion in the foot. 

Lanez, 32, sustained "7 wounds to his back, 4 to his torso, 2 to the back of his head, and 1 to the left side of his face", according to a post on his verified Instagram account.

Canadian Lanez, whose legal name is Daystar Peterson, was attacked at the California Correctional Institution in Tehachapi at 7.20am (3.20pm UK time) on Monday, according to a spokesman for the Department of Corrections and Rehabilitation.

He was hospitalised following the stabbing, which is being investigated by authorities.

"Both of his lungs collapsed," the rapper's social media statement said, adding Lanez was "now breathing on his own".

"Despite being in pain, he is talking normally, in good spirits, and deeply thankful to God that he is pulling through. He also wants to thank everyone for their continued prayers and support," the post said.

Lanez is serving a 10-year sentence for shooting Megan Thee Stallion, 30, in the foot and shouting at her to dance as she walked away from an SUV they drove in after leaving a party at Kylie Jenner's Hollywood Hills home in July 2020.

He was convicted of assault with a semiautomatic firearm, having a loaded, unregistered firearm in a vehicle and discharging a firearm with gross negligence in December 2022.

| US rapper Megan Thee Stallion at the Met Gala. Pic: Reuters

In January, a Los Angeles judge granted her request for a protective order until early 2030 after she alleged Lanez had been harassing her from prison through surrogates.

Megan Thee Stallion, whose legal name is Megan Pete, was already a rising hip-hop star at the time of the shooting, and her music's popularity has only soared since.

She had number one singles with Savage and as a guest on Cardi B's WAP in 2020, winning a Grammy for best new artist a year later.

Lanez started to release mixtapes in 2009 and steadily rose in popularity, moving on to major label albums, with his last two reaching the top 10 on the Billboard charts.