Tributes are being paid to the co-creator of Marvel comics - Stan Lee - who has died at the age of 95.
His daughter has confirmed the news to the Reuters news agency.
TMZ reported an ambulance rushed to Mr Lee's home in Hollywood early this morning.
He was then rushed to to Cedars-Sinai Medical Center where he later died.
Stan Lee created or co-created characters such as Spiderman, Iron Man and the X-Men.
Chairman and CEO of The Walt Disney Company, Bob Iger, said: "Stan Lee was as extraordinary as the characters he created.
"A super hero in his own right to Marvel fans around the world, Stan had the power to inspire, to entertain, and to connect.
"The scale of his imagination was only exceeded by the size of his heart".
— Marvel Entertainment (@Marvel) November 12, 2018
In a lengthy statement, Marvel said: "As Marvel's Editor-in-Chief, Stan 'The Man' Lee made his voice the voice of the stories themselves.
"Writing virtually every Marvel title and working with such luminaries as Jack Kirby, Steve Ditko, Don Heck, Gene Colan and John Romita, Stan began building a universe of interlocking continuity, one where fans felt as if they could turn a street corner and run into a Super Hero.
"A rich collection of characters grew out of his nonstop plotting sessions with his artists, including the Fantastic Four, Spider-Man, Thor, Iron Man, the Hulk, the X-Men, and more.
"Today, it would be almost impossible to find a corner of the Marvel Universe that Stan didn't have a hand in."
Tributes are also being paid on Twitter:
Damn... RIP Stan. Thanks for everything. pic.twitter.com/TMAaDJSOhh
— Ryan Reynolds (@VancityReynolds) November 12, 2018
Thank you Stan Lee for making people who feel different realize they are special.
— Seth Rogen (@Sethrogen) November 12, 2018
Rest in peace, Stan Lee. The many worlds of imagination & delight you created for humanity will last forever.
— Elon Musk (@elonmusk) November 12, 2018
RIP Stan Lee, 95.
The genius who gave the world so many wonderful comics.
A Marvel of a man. pic.twitter.com/UtdasQrVrH
— Piers Morgan (@piersmorgan) November 12, 2018
Overwhelmed with love and gratitude for the late, great hero, Stan Lee. Rest In Paradise. Thank you for your imagination, creativity, tenacity, inspiration and love!!! https://t.co/4WqHCtDXE1
— Rosario Dawson (@rosariodawson) November 12, 2018
RIP Stan Lee.. I had the honor of meeting him. 95 what a life...
— ICE T (@FINALLEVEL) November 12, 2018