JEREMY Corbyn was blasted for hypocrisy last night as it emerged Labour is using a company that employs workers on zero-hours contracts at its conference.

Shadow Chancellor John McDonnell again vowed two days ago to ban the employment agreements that lock in staff without any minimum guarantee of work.

2 Mr McDonnell has promised to put an end to zero-hours contracts if Labour gets into power Credit: PA:Press Association

But The Sun has discovered that a cleaning contractor at the party’s annual gathering in Liverpool use the controversial contracts – dubbed by its MPs as exploitative.

The company, CleanEvent Services, has a small army of cleaners inside the Arena and Convention Centre in Liverpool at the moment.

It has also emerged that the firm pays some of its cleaners the lowest possible legal wage of £7.83 an hour. That falls far short of Labour’s pledge to pay a mandatory living wage of no less than £10 an hour.

Another contractor, Carlisle Support Services, that supplies security guards and stewards to the Labour conference, also pays very low wages of £8 an hour. The UK’s current recommended Living Wage outside of London is £8.75 an hour.

2 Workers on zero-hours contracts have been employed to clean the Convention Centre in Liverpool where the Labour Party conference is taking place Credit: Getty - Contributor

Confronted by The Sun last night, Labour could not rule the prospect of dozens of support staff at their annual shindig on poor pay and zero hours contracts.

Former Tory leader Iain Duncan Smith said: "It really is rank hypocrisy to rail against zero hour contracts and then end up employing people on zero hour contracts. It’s a case of 'Do what I say, not what I do'."

On Monday, Mr McDonnell told party faithful from the conference main stage on Monday: “We’ll ban zero-hours contracts. We will lift people out of poverty by setting a real living wage of £10 an hour”.

The Labour Party last night refused to discuss the arrangements made with its contractors at the conference. The party would also not say how many of its support staff were on the insecure agreements.

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A Labour spokesman would only say: "Labour will ban zero-hours contracts that exploit workers."

A spokesman for Carlisle Support Services said: “Carlisle Support Services has not offered any zero-hour contracts for workers at the ACC.”

CleanEvent Services could not be reached for comment.

Labour leader Jeremy Corbyn slams Sports Direct boss Mike Ashley for failing to combat zero hours contracts