Tatjana Lazarevic, editor-in-chief of the online news portal KosSev, was detained by police on the road from the ethnically divided town of Mitrovica/Mitrovice to nearby Zvecan, where she planned to go to the local health centre to investigate what she said were "multiple complaints" about its readiness to deal with cases of the novel coronavirus.
Reports of an outbreak of new COVID-19 cases in Serb-run northern Kosovo have sparked in-fighting among politicians in Kosovo and accusations of negligence.
On Sunday, the main hospital in the Serb-run north, in the divided town of Mitrovica, confirmed 26 cases in the three northern municipalities of Mitrovica North, Zvecan and Leposavic.
The Belgrade-funded parallel health system run by the Serbian minority in Kosovo is sending its COVID-19 test results to Serbia - with very little or no collaboration with Kosovo's own institutions.
Not only tests for COVID-19 in Serb-run municipalities in Kosovo but also the subsequent treatment of severe cases is taking place in Serbia.
In this endeavour, Thaci is believed to have secured support US President Donald Trump's envoy for Serbia-Kosovo peace negotiations, Richard Grenell. A man of many titles - he is also the acting Director of National Intelligence and the US ambassador to Germany - Grenell has denied that the partition of Kosovo has been discussed in secret as part of the rumoured peace deal.