A NSW man has been tasered by police after getting into an argument with staff over toilet paper at a Big W store.

Police were called to the Tamworth Shoppingworld store about 10am after reports the man had assaulted two people at the store in Bridge Street.

Police were told the man became aggressive over stock unavailability and threw boxes of tissues at a female staff member and walked off.

"Police have been told a 50-year-old man began to argue with a staff members and another customer," a NSW Police spokesperson told nine.com.au.

When a female customer approached the man, he allegedly grabbed her around the throat before she was assisted by another customer. No injuries have been reported.

Nine.com.au understands the argument was over toilet paper, which has become a scarce commodity with stocks wiped out across the country due to coronavirus fears .

The man then left the store and purchased items from a supermarket, where police approached him.

A man was arrested and tasered by police after he allegedly assaulted a staff member and customer during an argument over toilet paper. (Supplied)

As officers attempted to arrest the man, he allegedly resisted and attempted to put one of the officers into a headlock and grasped at another officer's service firearm.

After police used a taser to take him down, he was taken to Tamworth Police Station, where he was treated by NSW Ambulance paramedics as a precaution.

The 50-year-old man was charged with two counts each of common assault, resist officer in execution of duty, and assault officer in execution of duty.

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Coronavirus sparks toilet paper panic buying

In a bid to combat the toilet paper shortage, Coles and Woolworths have both introduced limits on how many packets customers can buy.

Coles had previously said it would not impose restrictions, but today updated its position to align with Woolworths.

Both supermarket chains are restricting customers to four packets per purchase.

A customer fills his cart with packs of toilet paper at a shopping centre in Sydney. (AAP)

Shoppers are taking to eBay to buy toilet rolls. (Supplied)

Australia's chief medical officer Brendan Murphy says most cases in Australia are people who had travelled from other affected countries and there's only "limited community transmission" in NSW.

"We are trying to reassure people that removing all of the lavatory paper from the shelves of supermarkets probably isn't a proportionate or sensible thing to do at this time," Prof Murphy told a Senate hearing yesterday.