Prodigy of Mobb Deep died today at the age of 42.

He had been open about his struggles with Sickle Cell, and his publicist confirmed that he had been hospitalized with complications from the disease a few days ago.

Alongside his Mobb Depp partner Havoc, Prodigy helped define the NYC sound of the 90s with their classic street tales The Infamous, Hell on Earth and Murda Muzik.

Hip Hop has been mourning the loss of the legend since it came to light this afternoon. Here's some of the reaction.

Forever

A post shared by Havoc of Mobb Deep (@mobbdeephavoc) on Jun 20, 2017 at 11:32am PDT

QB RIP King P. Prodigy 4 Ever

A post shared by Nasir Jones (@nas) on Jun 20, 2017 at 10:33am PDT

Damn. RiP to the great one Prodigy. Rap game lost a legend the world lost a G. to and for his fam. Love. MOBB

— Lil Wayne WEEZY F (@LilTunechi) June 20, 2017

Wow RIP Prodigy

— ROYCE (@Royceda59) June 20, 2017

Heartbroken.

— Just Blaze (@JustBlaze) June 20, 2017

We keep losing our great ones... To my dude Bandana P... R.I.P. Prodigy of The Infamous MOBB DEEP... We got crazy memories! Condolences To Your Family! @prodigymobbdeep

A post shared by @djpremier on Jun 20, 2017 at 11:12am PDT

Don't want to believe he's gone. Omg. RIP @prodigymobbdeep #QueensFinest

A post shared by Nicki Minaj (@nickiminaj) on Jun 20, 2017 at 11:10am PDT

RIP Prodigy one of the greatest rappers ever!!!!!

— Danny Brown (@xdannyxbrownx) June 20, 2017

I'm sick to my stomach, what terrible news to wake up to. RIP Prodigy one of my favourite rappers of all time, can't believe this.

— Boi-1da (@Boi1da) June 20, 2017

rest in power prodigy.

— rem. (@RemyBanks) June 20, 2017

I really hope this prodigy story isn't true

— Smoke DZA (@smokedza) June 20, 2017

R.I.P. Prodigy damn... he showed me love since day one

— Kid Ink (@Kid_Ink) June 20, 2017

REST IN PEACE GOD P.

— BLUE CHIPS 7000 (@ActionBronson) June 20, 2017

RIP PRODIGY . HIP HOP LOST ANOTHER LEGEND

— LORD FLACKO JODYE II (@asvpxrocky) June 20, 2017

RIP prodigy...

— QTip (@QtipTheAbstract) June 20, 2017

I been doing this shit for years. Holding heat, selling, using, abusing all kinds of drugs. Robbing niggas, running up in niggas cribs, you know, the whole shit. So don’t ever in your life get me confused with some of them other niggas that you might see on tv, or hear on the radio & such. Know what I’m saying? I mean this is me, P, I’m speaking for my fucking self. When you see me at thew show, on stage, or in the street, I definitely got the gat on me you know what I’m saying? Know what I mean? & it ain’t like I’m trying to be a tough guy, or make people think I’m crazy by saying all this shit… but what is is is that, I know how niggas get down. I used to be in the clubs, The Muse, The Tunnel, whatever the fuck. Niggas get they little drink on having fun with they little crew, start cutting, shooting or whatever, things like that. A lot of these so called rap niggas aint never seen no parts of that shit you know what I’m saying? You dig where Im coming from? & I know a lot of y’all niggas, matter fact all y’all niggas listening to this shit is like “Yeah, we gon see them Mobb Deep niggas we gon see what they about. You know what I’m saying? Touch them niggas we gon see where they head is at. So yo, I’m gonna let you niggas know right now. You ain't gotta waste your time, or your money on your hospital bills. & if you step to me on a personal level I don’t back down easy. There's a good chance your ass either gonna get shot, stabbed, or knuckled down..one out of the three. So don't gamble with your life duke word up. 8 believe me, I know very well I could get shot, stabbed or fucked up too, whatever. I ain't "Supernigga, I’m a little skinny mutha fucka. It's all about who gets who first, though you know what I'm saying? So therefore, say no more. To all my niggas, get the money, frontin niggas get deceased. And oh yeah, to all them rap ass niggas with your half assed rhymes talking about how much you get high, how much weed you smoke, & that crazy space shit that don't even make no sense, don't ever speak to me when you see me, know what I'm saying? Word. I'ma have to get on some ol’ high school shit, start punching niggas in they faces for living.

A post shared by @vincestaples on Jun 20, 2017 at 11:34am PDT

PRODIGY Times are really changing!

A post shared by Meek Mill (@meekmill) on Jun 20, 2017 at 11:23am PDT

Damn!!!Just saw bandanna p at the west side guns and Conway show and told him Kiss n myself was just banging murder Muzik .. shit is crazy!

— ghost (@therealstylesp) June 20, 2017