No new deaths were recorded, with the fatality toll remaining on 34.
The Disease Prevention and Control Center (SPKC) said 1,777 tests had been conducted during the previous 24-hour period.
In total 250,709 tests have been carried out since February 29.
So far 1,163 patients have recovered from infection.
Four patients are in hospital, three of whom are described as having moderate symptoms of the disease but one of whom is said to have severe symptoms.
Pēdējās 24h veikti 1777 COVID-19 testi, reģistrēti 12 jauni saslimšanas gadījumi. Latvijā kopā veikti 250 709 izmeklējumi, saslimušas 1393 personas un 1163 izveseļojušās, 34 mirušas.— SPKC.gov.lv (@SPKCentrs) August 30, 2020
SPKC added that eight of the newly infected patients were contact persons, three had arrived from Ukraine, one is still under investigation.
A useful summary in English of the latest COVID-19 situation including restrictions in place and rules on public assembly is available at this special government website.
Cīņa ar #COVID19 izplatību nav noslēgusies - iepazīsties ar noteikumiem, kurus nepieciešams ievērot savas un sabiedrības veselības saglabāšanas nolūkā arī pēc ārkārtējās situācijas noslēguma! ☝?— Valdības māja (@Brivibas36) June 10, 2020
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The number for medical emergencies is 113, the number for enquiring about a COVID-19 test if you have developed some potential symptoms after returning from overseas or being in contact with someone confirmed as having coronavirus is 8303 and the SPKC COVID-19 advice helpline is 67387661.
The SPKC has information in English about the approved methods of protecting yourself from the virus, symptoms and medical procedures and an interactive map plotting the incidence and distribution of the disease in Latvia.
See our other story about the latest list of countries which require self-isolation for people arriving in Latvia.