Yazmani Diaz-Montero, 38, of Crystal Lake.

A Crystal Lake man wanted for sexually assaulting a family member was arrested by the U.S. Marshals earlier this month.

Yazmani Diaz-Montero, 38, of the 300 block of West Terra Cotta Avenue in Crystal Lake, was charged with criminal sexual assault, a Class 1 felony, and sexual relations within families, a Class 3 felony.

A criminal complaint filed in McHenry County Circuit Court alleges that Diaz-Montero committed the sexual assault on September 10.

The complaint says that the victim, who is a family member of Diaz-Montero, was unable to give consent to the act.

The incident was investigated by detectives with the McHenry County Sheriff’s Office.

A McHenry County judge issued an arrest warrant on April 26 carrying a $100,000 bond.

The United States Marshals Service arrested Diaz-Montero on May 4 and transported him to the McHenry County Jail.

Diaz-Montero remains held in the jail and would need to post $10,000 cash in order to be released.

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Diaz-Montero, who was appointed a public defender, is scheduled to appear in court again on May 28 for a preliminary hearing, court records show.