One of the founding members of Clean Bandit, Neil Milan, has confirmed on social media that he has quit the band.
The violinist and pianist, who also goes by the name Neil Amin-Smith, announced on Twitter that he took a "long time" to reach the decision but it's "the right one".
In his post he thanks ex-boyfriend Olly Alexander, singer with Years & Years.
The band are perhaps best known for their collaboration with Jess Glynne on Rather Be.
That track topped the singles chart in January 2014 and won them a Grammy Award.
While a variety of people are thanked in his Twitter post, bandmates Jack Patterson, Luke Patterson and Grace Chatto are not directly named.
Thanking his fans, Neil says: "I have learned so much and seen so many things and it will all stay with me forever.
"Your support for the music and just for me more generally is one of the most insane and amazing things I have ever experienced."
In a post on their official Facebook page, Clean Bandit write: "It is with great sadness that we must announce that our performances of Tears over the Summer were Neil's last shows with Clean Bandit.
"He told us recently that he has decided to leave. We have had a wonderful ride together and we are extremely excited to see what he does next.
"We are also very much looking forward to our upcoming shows and to sharing our new music with you.
"Thank you all for your support during this time, and thank you Neil for being part of this amazing journey.
"We will miss you a lot on this next chapter and we wish you the best of luck for the future. Jack, Grace and Luke."
Clean Bandit recently performed a Radio 1 Live Lounge along with Louisa Johnson.
Neil was absent from the line-up on the day.
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