Emmy-winning actor Timothy Busfield has been indicted in the US state of New Mexico on four counts of criminal sexual contact of a child, prosecutors say.

The charges against him stem from allegations brought by child actors he worked with on the New Mexico set of the Fox series The Cleaning Lady, which he directed and produced.

The grand-jury indictment unsealed on Friday carries state charges that supersede the previous charges announced by the county prosecutor last month.

The West Wing and Field of Dreams actor, 68, who has denied the allegations, surrendered to state authorities last month when a warrant was issued for his arrest. A judge later ordered his release pending trial.

Busfield had originally been taken into custody in Albuquerque on two counts of criminal sexual contact of a minor and one count of child abuse.