A man has been arrested for allegedly trying to cross the NSW-Victoria border without an exemption.
The Victorian man, 34, is said to have attempted to drive into NSW at Wahgunyah on Wednesday morning.
Police said he has been arrested and taken to Albury Police Station, while his wife and three children complied with a police direction and returned to Victoria.
Victoria and NSW have agreed to shut the border between the two states as coronavirus cases grow in the southern state.
It is an offence to enter NSW from Victoria without a valid exemption.
About 50,000 vehicles have crossed from Victoria into NSW since the border closure came into effect at midnight, according to police.
Long lines of cars and trucks at the border stretched up to four kilometres long overnight, with police turning back a handful of people travelling from Melbourne's coronavirus hotspots.
Hours before the border closure came into effect, the Service NSW site allowing people to apply for travel permits crashed shortly after it was launched at 7.30pm on Tuesday due to "high levels of demand".
In a statement on Tuesday night, an NSW Service spokesperson apologised for the delays in securing a permit.
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