NEW YORK (AP) _ Natasha Duncan, a plus-size model who had appeared in Seventeen and other magazines, apparently committed suicide by stabbing herself several times in the neck, police said.

Duncan, 21, slashed her throat with a kitchen knife Saturday in her East Side apartment, according to police.

Duncan's roommate, fellow model Johanna Edelberg, told police they were smoking marijuana when she went to listen to music in another room. When she returned to the kitchen, she found Duncan's body, police said.

Duncan was with the prestigeous Wilhelmina agency, which began its plus-size model division, catering to larger women, in 1994. Duncan had appeared in several magazines, including Mode.

``It was all sort of new to her, so she was very excited about it,'' said Bill Swan, Mode's photo director. ``Her career took off very fast.''

Tom Winslow, Duncan's agent, said everyone at Wilhelmina was deeply saddened. He said Duncan was from Florida, but declined to say exactly where, and refused to comment further Monday.

Duncan's family reportedly told police she had been depressed. She did not leave a suicide note.

``She said she was having some problems with some guy she'd been seeing, some kick-boxing instructor,'' Duncan's brother Alec told the New York Post.

``I'm dumbfounded. I don't understand it,'' her brother said.