Kenya's lawmakers have been displaying their coronavirus test results on social media amid local media reports that some tested positive on Monday.

The country's Daily Nation and The Star newspapers quoted sources as saying that some lawmakers tested positive for the coronavirus on Monday after being urged to go for voluntary testing within the precincts of the House over the weekend.

Already some MPs were under a mandatory quarantine after returning from international trips in early March.

Lancet Kenya, the laboratory service that conducted the tests in parliament, on Wednesday dismissed the media reports as "incorrect, misleading and should be disregarded".

It said the list circulated of purported MPs who tested positive for Covid-19 was entirely false and urged media outlets to retract the stories and apologise.

But the reassurance came after lawmakers had already posted their test results on Twitter.