TOKYO >> A man screaming “You die!” burst into an animation studio in Kyoto, doused it with a flammable liquid and set it on fire Thursday, killing 33 people in an attack that shocked anime fans across Japan and beyond.

Thirty-six others were injured, some of them critically, in a blaze that sent people scrambling up the stairs toward the roof in a desperate — and futile — attempt to escape. Others emerged bleeding, blackened and barefoot.

The suspect was injured and taken to a hospital. Police identified him only a 41-year-old man who was not a company employee. They gave no immediate details on the motive.

Most of the victims were employees of Kyoto Animation, which does work on feature films and TV productions but is best known for its mega-hit stories featuring high school girls. The stories are so popular that some of the places depicted have become pilgrimage sites for fans.

The blaze started in the three-story building in Japan’s ancient capital after the attacker sprayed an unidentified liquid accelerant, police and fire officials said.

“There was an explosion, then I heard people shouting, some asking for help,” a witness told TBS TV. “Black smoke was rising from windows on upper floors. Then there was a man struggling to crawl out of the window.”

Japanese media reported the fire might have been set near the front door, forcing people to find other ways out.

Firefighters found 33 bodies, 20 of them on the third floor and some on the stairs to the roof, where they apparently collapsed, Kyoto fire official Kazuhiro Hayashi said. Two were found dead on the first floor, 11 others on the second floor, he said.

A witness who saw the attacker being approached by police told Japanese networks that the man admitted spreading gasoline and setting the fire with a lighter. She told NHK public television that the man had burns on his arms and legs and was angrily complaining that something of his had been “stolen,” possibly by the company.

NHK footage also showed sharp knives police had collected from the scene, though it was not clear if they belonged to the attacker.

Survivors said he was screaming “You die!” as he dumped the liquid, according to Japanese media. They said some of the survivors got splashed with the liquid.

Kyoto Animation, better known as KyoAni, was founded in 1981 as an animation and comic book production studio, and its hits include “Lucky Star” of 2008, “K-On!” in 2011 and “Haruhi Suzumiya” in 2009.

The company does not have a major presence outside Japan, though it was hired to do secondary animation work on a 1998 “Pokemon” feature that appeared in U.S. theaters and a “Winnie the Pooh” video.

“My heart is in extreme pain. Why on earth did such violence have to be used?” company president Hideaki Hatta said. Hatta said the company had received anonymous death threats by email in the past, but he did not link them to Thursday’s attack.

Anime fans expressed anger, prayed and mourned the victims on social media. A cloud-funding site was set up to help the company rebuild.

Fire officials said more than 70 people were in the building at the time.

The death toll exceeded that of a 2016 attack by a man who stabbed and killed 19 people at a nursing home in Tokyo.

A fire in 2001 in Tokyo’s congested Kabukicho entertainment district killed 44 people in the country’s worst known case of arson in modern times. Police never announced an arrest in the setting of the blaze, though five people were convicted of negligence.