A mother has not been able to hold back her disgust after sacking her nanny.

The mum said that she was shocked to discover that the nanny she hired to look after her 10-month-old son and five-year-old daughter had secretly been breastfeeding the son. 

The nanny started attempting to nurse the baby after the mother had confided in her about her issues with breastfeeding.

“During a conversation that we had recently (maybe two weeks ago), I mentioned that I don’t produce much milk which forces me to rely on donor milk to feed my son,” the mum confessed in the Reddit post.

“She was very sympathetic and inquisitive about the situation, and I was happy to answer all of her questions while simultaneously thinking nothing of it.”

It was only after the mother checked the nanny cams that were set up in the house that she made the discovery.

“I have nanny cameras set up in the living room and in my bedroom that my husband and I can access at anytime when we’re not home, but I never feel compelled to check for the simple fact that I trust my nanny,” she explained.

“However, I was having a rough day yesterday and wanted to see what the little ones were up to so I decided to pop in. My nanny was sitting on my bed, rocking my son, and attempting to breastfeed him.

“I almost felt sick, it just seemed so inappropriate. I decided to wait until I got home to confront her about it, and when I asked she was incredibly apologetic. She said she wanted to help me because of my milk production issues and never meant any harm.”

The mother initially accepted the apology, but became suspicious and went through old footage.

To her horror, she discovered that the nanny breastfeeding her son wasn't a one-off occurrence. 

“She unplugs the camera in my bedroom when she goes to put him down for naps and plugs it back in when she leaves,” she added.

“After reviewing our recordings this wasn’t the first time she attempted to breastfeed my son, among a few other questionable things (closing my daughter in the pantry, leaving my son in the backyard unattended, etc).”

If that's not bad enough, the mother also discovered that some treasured baby items were missing. 

“A couple of my son’s first outfits (first onesie, first Halloween costume) were gone as well as a small blanket that belonged to my daughter, and a box of old baby clothes I was going to donate,” she added.

“These were returned to me by [the nanny’s] father minus the blanket because she can’t find it.”

The mother said she’s been left “heartbroken” by the incident.

“We’ve decided to let her go, obviously, and I’m going to be taking a few weeks of leave to take my kids in for check-ups,” she added.

“My husband and I are horrified and heartbroken that we facilitated a situation in which our children’s safety was put at risk.”

This article originally appeared on Over60.