Laura Smith, Jon Trickett and Ian Lavery urge Labour leader not to "bury under the carpet his role".
Our party lost the election because we called for a second referendum, write Jon Trickett, Laura Smith and Ian Lavery.
Lisa Nandy and Rachel Reeves promoted. Corbyn allies Ian Lavery, Barry Gardiner and Jon Trickett all removed from posts.
Sir Mark Sedwill agrees "independent element" to his probe after "frank" meeting with Labour leader, party says.
The warning comes after the Times newspaper carried quotes from unnamed civil servants about the Labour leader.
The thousands of jobs and £148million lost should have been a wake-up call, but the Tories buried their heads in the sand and carried on as if nothing happened
The most divided government ever is putting the economy at risk, leaving communities behind and pushing our public services into crisis
New party founded by LoveFilm millionaire Simon Franks reported to have £50m war chest.
The company employs 73,000 people.
Many are unhappy with their resources and workload.