Finnish stores say they are selling increasing numbers of rapid Covid tests, as the epidemic situation continues to worsen.
Finland's daily case count exceeded 1,000 on Wednesday, and testing and contact tracing services have been under strain.
The S-Group chain of supermarkets says it has sold some 20,000 tests in the last week.
German discounter Lidl told the STT news agency that the tests have run out at times in different parts of the country, but the company is re-stocking as fast as it can.
Lidl said demand had started to rise in late May, when people began to attend multi-generational family events over the summer and wanted to ensure there was no risk of infection.
"We're happy that we have been able to grant these wishes," said Lidl in a statement to STT. "The Covid test has been a relatively popular product, and they've sold well throughout the country."
Fimea told STT that the retail tests do not replace PCR tests conducted by medical services, and a negative result from the retail test does not mean someone can end a quarantine period after exposure.
However they can provide peace of mind to those not experiencing symptoms, according to Fimea inspector Hanna Valo.