Police in Secaucus contacted the prosecutor's Special Victims Unit Friday and reported the alleged assaults. That night, Mario Buitrago-Sanchez was arrested and charged with aggravated sexual assault, sexual assault. endangering the welfare of a child and lewdness.
The assaults occurred while Buitrago-Sanchez was watching the child in his Union City home, authorities said.
Buitrago-Sanchez is in custody pending his trial.
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