PHILADELPHIA, Pa. -

A 40-year-old Effort man pleaded guilty in a Philadelphia court Monday, for conspiring with others to distribute heroin in the Monroe County area during a six-month time period.

According to U.S. Attorney Peter Smith, the defendant, Keroin Johnson, admitted to committing the crime between November 2013 and April 22, 2014.

Johnson was charged in court following an investigation by the FBI and the Pa. State Police.

Johnson faces a potential maximum sentence of 20 years in prison and a $1million fine.

He will be sentenced by senior U.S. District Court Judge Richard P. Conaboy at a future date.

He was ordered to be detained in prison pending sentencing in the case.