Through a series of advertisements first spotted on the London Underground, Thom Yorke has teased the arrival of his highly anticipated new solo album.

The Radiohead frontman recently told Crack Magazine that his latest project would have a "dystopian" theme, and he has made good on this promise by building hype for the album with a series of advertisements for 'Anima Technologies'. The ad, which has been sighted on London Underground trains, in phone booths in Milan, and inside The Dallas Observer, asks, "Do you have trouble remembering your dreams?"

Hey #London folks! We think we have spotted part of an ARG on the tube this morning (Jubilee line).

Anyone know anything more about this?#Anima#AnimaTechnologies pic.twitter.com/7GM4Eks5jY

— Kim Warren (@Fellwolf) June 13, 2019

According to Pitchfork, the phone number (916-619-6192 in the US or 07588733111 in the UK) on the advert leads to a voice message claiming that "Anima technologies has been ordered by the authorities to cease and desist from undertaking its advertised business." A portion of an unreleased Thom Yorke track, 'Not the News', is then played.

The currently untitled album follows Yorke's last solo studio LP, 2014's Tomorrow's Modern Boxes, and 2018's soundtrack to Luca Guadagnino's remake of Suspiria.

Last week, Radiohead released 18 hours of recordings from their OK Computer sessions, after being blackmailed by online hackers demanding $150,000. The band put the sessions on Bandcamp for £18, with proceeds going to climate activist group Extinction Rebellion.