The four Victorian stowaways who were caught hiding on freight train bound for Perth at Adelaide’s freight terminal have been sent back to Victoria.

The Victorians faced a potential $20,000 fine for breaching COVID-19 restrictions, but walked away from court without penalty.

All four tested negative to the virus and have now been sent back over the border.

Meanwhile, those who come across the border from Victoria and refuse a test will now cop a hefty fine.

Premier Steven Marshall announced the new rule which came into effect yesterday.

People who enter the state from Victoria and say “no” to a COVID-19 test can now face a $1,000 fine.

However, the state’s Opposition is asking why the rule was not in effect earlier, with Labor’s health spokesman Chris Picton telling The Advertiser that the rule was about 10 days too late.