The manager of Terry Pratchett's estate says he's honoured the late fantasy author's wishes by destroying a hard drive containing his unpublished works with a steamroller.

Rob Wilkins posted a picture of himself near a steamroller and tweeted: "About to fulfil my obligation to Terry."

About to fulfill my obligation to Terry <a href="https://twitter.com/SalisburyMuseum">@SalisburyMuseum</a> <a href="https://twitter.com/Wiltshire_flo">@Wiltshire_flo</a> <a href="https://t.co/B0xr3V5Cbg">pic.twitter.com/B0xr3V5Cbg</a> —@terryandrob

He followed up with an image of a broken hard drive and wrote: "There goes the browsing history..."

There goes the browsing history... Many thanks to <a href="https://twitter.com/steamfair">@steamfair</a>. Soon to be on display at <a href="https://twitter.com/SalisburyMuseum">@SalisburyMuseum</a> in September <a href="https://t.co/Di8tvTO4Hi">https://t.co/Di8tvTO4Hi</a> <a href="https://t.co/onGGWLDYL4">pic.twitter.com/onGGWLDYL4</a> —@terryandrob

The hard drive was crushed by a vintage steamroller named Lord Jericho.

One lousy steamroller, ten unpublished novels and look at all the trouble I'm in...! <a href="https://t.co/c1da6BTETj">pic.twitter.com/c1da6BTETj</a> —@terryandrob

What is left of the object will go on display at England's Salisbury Museum in September, as part of the exhibition, Terry Pratchett: HisWorld.

Pratchett, one of Britain's best-loved authors who created the Discworld series and wrote some 70 books, died in 2015 at the age of 66. He suffered from early onset Alzheimer's disease.