Kourtney Kardashian has slated the rumours about her son

Rumours started to circulate online after accounts pretending to be the teenager claimed he had a secret baby called Piper.

The bizarre claims about her 15-year-old son have gone viral online, but Kourtney quickly shut them down.

The fake account addressed rumours about Mason's 'secret child'.

A follower asked: "Did you have a baby?" to which the account replied: "Yeah, I did."

People quickly fell for the false claims, and they started to appear all over social media.

The mum took to her Instagram story to shut down the false claims.

Kourtney shared:

"I rarely address rumors or conspiracies regarding myself or my family, but this is about my child, and it feels wrong to let anyone think for a second that these lies are remotely true. They are not."

She continued: "Mason does not have a child. These accounts that pretend to be him are definitely not. They are FAKE."

Kourtney continued, "My son really values his privacy, and I am asking all media to please, be respectful: he is a kid with feelings and a beautiful life ahead of him."

"Please stop spreading false narratives and spinning lies," she added.

The mum stressed that people need to leave her children alone.

“And to all the other people making videos about my kids (who, by the way, are minors), please stop and leave them alone," Kourtney concluded.