More nude celebrity photos, purportedly including reality star Kim Kardashian, have circulated on social media, in what appeared to be the second massive hacking-related leak in less than a month.

The pictures, which also included nude shots of actress Vanessa Hudgens and US soccer star Hope Solo, appeared briefly on 4chan and Reddit, before being removed.

BuzzFeed said that personal videos and photos belonging to actresses Aubrey Plaza, Mary-Kate Olsen, and others were posted, in addition to previously unseen pictures of Jennifer Lawrence.

Hackers first released a trove of nude starlets' photos on September 1, after snatching them from Apple's iCloud in what the tech giant has called a "targeted attack."

The company has denied its cloud storage system was breached.