The British rock band took to Facebook on Friday (17Jun16) to announce that their recent tour of America would be Pete's last, because he had told them earlier this year (16) that he wanted to quit to focus on other projects "and the time has now come for that to happen."

"After much thought and deliberation I have decided the time is right to end my time as a Vaccine," Pete writes. "The last six years have been the most incredible years of my life and I will never forget them. I've seen and experienced more in these years than I'd have any right to expect from a lifetime."

He called his bandmates Justin Hayward-Young, Freddie Cowan, and Arni Arnason "brothers" that share a bond "that'll never break" but he is looking forward to beginning the next chapter of his life and taking on "new challenges".

"Thanks to everyone who's come on the journey with us so far, and to my brothers for supporting me in this decision," he concludes.

Justin adds, "We’ll love him and miss him on our adventures and we’re all incredibly sad to see him go, but this sadness is only outweighed by our excitement for his future and our own... Raise a glass to Pete and see you in the summer."

The band formed in London in 2010 and have released three studio albums, including 2015's English Graffiti.

A replacement drummer hasn't been revealed.