NEW YORK -- A special education teacher in the Bronx was arrested and charged after police said he got a 15-year-old student pregnant - a result from an alleged year-long tryst with the teenage girl.

Bill Agosto, 26, a teacher for the Bronx School of Science Inquiry and Investigation at M.S. 331 in Concourse, was arrested Wednesday and charged with rape and sexual misconduct.

According to police, Agosto had a sexual relationship with the girl who is described as a former student. She is not a student at M.S. 331, police confirmed.


Sign up for KTLA 5 Breaking News Email Alerts

Sources say the relationship between the pair was consensual and also resulted in the girl getting pregnant. They allegedly began their relationship when he worked at a different school as a track coach.

The teenager's mother suspected something was going on and alerted authorities.

Officials for the Department of Education say Agosto is being reassigned away from the classroom.