SEATTLE (AP) - A woman was charged yesterday with covering up the death of her infant son by cremating the boy after he drowned in a bathtub, last fall.

Laura Mjelde, 22, was charged with first-degree criminal assistance and filing a false police report.

Her boyfriend, Stanley Red, 24, was charged with first-degree manslaughter for allegedly allowing Christopher to drown in a bathtub in October.

His sister, Cynthia Red, also was charged with first-degree criminal assistance in the cover-up.

It was not known if the three had attorneys.

Authorities lacked evidence to file murder charges in the case, prosecutor Norm Maleng said.