An elderly man was killed and three people were injured when a blaze tore through a Manhattan apartment building Sunday morning, authorities said.

The fire broke out just after 6 a.m. on the first floor of a six-story apartment building on East 7th Street near Avenue C, an FDNY spokeswoman said.

Approximately 60 fire personnel responded to the East Village fire, where they discovered 71-year-old Barry Allen had died. Three others suffered minor injuries and were taken to NewYork-Presbyterian/Weill Cornell Medical Center.

“Shooting out of the back windows you saw flames. Lots of smoke,” said a 6th-floor resident who asked to remain anonymous. “I ran downstairs knocking on some doors. I wanted to knock on everybody’s door and get out.”

The flames were under control just after 7 a.m, the spokeswoman said.

The fatal victim, whose identity has not yet been released, was a longtime resident of the building, the resident said.

“He’s a fixture around here for sure.”

Another neighbor, who declined to give her name, said he was “just a nice, friendly person.”

“I’m sad for him,” she said. “He hung out on the stoop a lot. He talked to everybody. He was just a nice friendly person.”

The cause of the fire is under investigation by FDNY fire marshals.