If anyone needs any assistance, we’ll be paying for everything through our insurance,’ he said.

‘It seems to be an accident and we’re very sorry and thank God no-one’s had a major accident.

‘The pins on the back of the truck were locked, confirmed by the police, so it’s just a mechanical error of some sort.

‘We don’t know exactly how it’s come out the back of the truck, it’s just been seeping out by the looks of it over a couple of kilometres.’

Mr Falconer said the company had been ‘doing this for about three or four years and we’ve never had a problem with it’.

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Nearly 380 vehicles got flat tyres when a truck spilled metal shards on Sydney’s M1 freeway

The driver involved, 46, who has more than 20 years’ experience, was helping