The stepfather of the young children who went missing from rural Nova Scotia in the spring is facing charges involving an adult.

RCMP say Daniel Martell was arrested Monday for sexual assault, assault and forcible confinement and is scheduled for court March 2.

The 34-year-old was in a relationship with the mother of Jack and Lilly Sullivan for three years.

The four-and six-year-old children disappeared from Landsdowne Station, Pictou County, May 2 after allegedly wandering away from home and have not been found since.

Photo: Nova Scotia Government

Multiple searches were triggered since Jack and Lilly disappeared including one in September with cadaver dogs that covered a 40 km radius, but no remains were found.

That investigation is still a missing persons case being investigated by multiple agencies including major crimes.