A union has welcomed the government taking over a troubled steel company, but is warning that payment for workers must be a top priority.

Speciality Steels UK - which employs almost 1,500 people - was pushed into compulsory liquidation on Thursday, and is the third-largest producer in the country.

It is part of the Liberty Steel empire owned by metals tycoon Sanjeev Gupta, and operates from sites in Rotherham and several other locations across South Yorkshire.

The government has stressed it will cover staff wages and the running costs of the plants until a buyer is found.

Speaking to Sky's Anna Jones, Community Union National Secretary Alun Davies said workers are "concerned" about the developments.

He added: "Today is payday - but because the bank accounts were closed, I think the special managers and the HR team now are working with the unions to get that pay in today or as soon as they can."

With a bank holiday weekend fast approaching, workers may only receive their wages on Tuesday unless payments are made as a matter of urgency.

Mr Davies said he is confident that the plants have a future, telling Sky News: "If we use British-made steel for British infrastructure projects, it creates jobs, it grows economies and it gets our economy back on track, which is what this Labour government is trying to do."

While he said government investment is valuable, the union official cautioned: "If we can find a decent buyer - a reputable steel company that knows what they're doing - we're open to all options.

"We're not going to just say nationalise or part-nationalise, it's what's best for the business and gets the business up and running as soon as possible … if the government takes ownership, that is a significant cost to the taxpayer."

Mr Davies explained that many workers have been staying at home and on 85% pay, which is having a big impact on their mental health and wellbeing.

In a statement, Community's General Secretary Roy Rickhuss described it as an "extremely worrying time" for the union's members - and said jobs must be protected in the event of restructuring or a transition to new ownership.

Calling for 12 months of pension contributions to be secured alongside this month's paychecks, he added: "Steelworkers at Liberty Steel are highly skilled and hugely experienced; they are quite frankly irreplaceable and will be critical to delivering future success for the businesses."

Mr Rickhuss said the union has received "firm assurances" that efforts to address pay and pensions are under way - and welcomed the government's intervention.

"However, in taking control of the business the government has assumed responsibility for our livelihoods and our communities, and we will of course be holding them to account," he added.

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Bosses at Speciality Steels have said the move to wind up the business is "irrational" as a plan had been presented to courts that would have led to new investment in the UK steel sector.

"Instead, liquidation will now impose prolonged uncertainty and significant costs on UK taxpayers for settlements and related expenses, despite the availability of a commercial solution," chief transformation officer Jeffrey Kabel added.

On Thursday, a government spokesperson said ministers "remain committed to a bright and sustainable future for steelmaking and steelmaking jobs in the UK".