Los Angeles:Blake Shelton has come under fire from fans after they stumbled across numerous offensive tweets made by the singer. "The Voice" star, who is in a relationship with his co-star Gwen Stefani, deleted the tweets after they were discovered, reports mirror.co.uk. He wrote in a now-deleted tweet: "Wish the d**khead in the next room would either shut up or learn some English so I would at least know what he's planning to bomb!!" The authenticity of the posts, which are said to have been shared in 2011, has not been independently verified. Twitter users posted screenshots of the messages and accused the star, 40, of deleting the "disgusting" and "extremely offensive" tweets. Another shocking tweet came in the form of a message about actress Dakota Fanning, who was just 16 at the time. He is believed to have written: "So I just figured out a great excuse for my sick fantasy about Dakota Fanning. I thought she was Amanda Seyfried." Shelton was also branded a sexist following a tweet which read: "I was 19 years old when my heart first got broken. I'm over it now but I wonder what that fat ugly b**** is up to." The homophobic allegations stem from a message reading: "Grown men who wear Chuck Taylor's may as well write on their forehead 'Cucumbers turn me on!" In another, Shelton made a homophobic comment about a random guy he met at a coffee shop. He had posted: "Standing in line at a coffee shop in LA talking with the man in front of me. He orders a skinny caramel latte. I couldn't tell he was gay!" After the tweets went viral, fans took to Twitter to trash "The Voice" coach. One fan wrote: "Absolutely zero people should be surprised that Blake Shelton, a country singer from Oklahoma, is possibly racist and homophobic". Another posted: "Blake Shelton I can't believe you would say something so racist I will never buy your music again."