Reality star Rob Kardashian has returned to Instagram on Thursday, August 11, 2016.

The younger brother of Kim Kardashian took to Instagram to congratulate his younger sister Kendall Jenner on her September cover of Vogue.

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This is the first time he’s posted to the social media platform since deleting all his pictures last month.

"I'm so proud of you baby Sis‼September issue VOGUE!!LOVE YOU KENNY," he wrote alongside the picture.

Recall that back in July this year, the father-to-be fuelled rumours of a split from his fiancée, Blac Chyna, after he wiped his entire Instagram account clean of any photos of her without explanation.

The only picture left was a throwback photo of himself which he deleted few hours later.

The Kardashian brother was reported to have officially split from fiancee, Blac Chyna, after finding suspicious texts on her phone.

MediaTakeOut reported that the pair had a major falling out right in front of the camera while shooting a scene for "Keeping Up With The Kardashian’s" on July 24, 2016.

The reports also revealed that the falling out to be the reason why Rob deleted all his Instagram post and unfollowed Chyna on the social medium.

Chyna immediately unfollowed Rob on Instagram as well but re-followed him again morning.