After the borders opened yesterday morning, NT Police counted more than 2500 new arrivals to 5am today.

The vast majority of travelers arrived by road from South Australia at Kulgera (1041), with almost 800 arriving from Queensland on the Barkly Highway and 277 on the Victoria Highway from Western Australia.

Robinson River at the Queensland border was the busiest of the remote border checkpoints, with 60 people entering the NT by the Savannah Way.

Darwin Airport saw 344 arrivals yesterday from Perth, Cairns, Melbourne and Brisbane. 53 passengers aboard the flight from Melbourne have entered mandatory quarantine at Howard Springs.

Of the total number of arrivals by road and air, 65 people have entered mandatory supervised quarantine in Howard Springs and Alice Springs.

Police issued two quarantine infringement notices yesterday to two women (aged 28 and 44) undertaking self-quarantine in Alice Springs.

They were not at home during a routine check on July 16.

They were issued infringements when spoken to yesterday and unable to provide a lawful excuse for their absence.

More reading: First $5000 fine for failing to follow the rules.

"Self-quarantine ended yesterday for those who have not traveled from overseas or from a declared hotspot," Incident Controller Shaun Gill said.

"People from a declared hotspot who entered self-quarantine before July 17 are required to complete the full 14 days. Breaking quarantine isn't worth the risk to public health - and ask yourselves if that carton of milk you need or if that cup of coffee you are desperate for is really worth a $5000 fine."

The infringement penalty for failing to abide by the Chief Health Officer Directions issued under section 56 of the Public and Environmental Health Act 2011 is $5056 for an individual and $25,280 for a business.

NT Police and Environmental Health Officers continue to undertake compliance activities.

A total of 28,013 compliance checks have now been completed and 143 fines issued.

For information on the changes to quarantine requirements, visit www.coronavirus.nt.gov.au

While you're with us, you can now receive updates straight to your inbox each Friday at 6am from the Katherine Times. To make sure you're up to date with all the news, sign up here.