Sanna Marin holds a press conference in Helsinki, Finland, on Aug. 19, 2022. AP
Marin's urine sample was tested for the presence of various drugs, such as cocaine, amphetamine, cannabis and opioids, Iida Vallin, a special adviser to the prime minister, told reporters.
"Drug test taken from Prime Minister Sanna Marin on Aug.19, 2022, did not reveal the presence of drugs," Marin's office said in a statement, adding that the results were signed by a doctor.
"The test was a comprehensive drug test. We did not choose how the test was done," Vallin said.
A video leaked last week showed Marin dancing and partying with a group of friends and celebrities created controversy across the world.
Some interpreted comments heard on the video as referring to narcotics, something heavily debated on social media and strongly denied by the prime minister.
"To clear up any suspicions, I have taken a drug test today," she told reporters at her residence on Friday.
Marin previously said she was "spending an evening with friends" and that the videos were "filmed in private premises."
She admitted to having drunk alcohol. In addition to denying taking drugs, she said she did not witness any drug use by any of the attendees. "Never in my life, not even in my youth, have I ever used any drugs," she said.
Marin — who was appointed in 2019 at the age of 34 — has previously been the target of criticism over parties at her official residence.
In December 2021, she came under sustained criticism after it was revealed she stayed out dancing until the early hours despite having been exposed to COVID-19.
A poll commissioned by Finnish TV channel MTV3 at the time found two-thirds of respondents thought her night out was a "serious mistake."
Countless similar videos are shared daily on social media by young and not-so-young people partying in Finland and all over the world. But the leak has triggered a debate among Finns about what level of reveling is appropriate for a prime minister, especially considering neighbouring Russia’s attack on Ukraine, which prompted long-neutral Finland and Sweden to apply for Nato membership.
Finland's government said on its website that the wedding took place at Kesaranta, the prime minister's official residence. It said the couple's family and closest friends attended.
Sanna Marin says she did not take any drugs during a "wild” party in a private home, adding she did nothing wrong when letting her hair down and partying with friends.
In the video clips, thought to be taken from social media, she and friends including Finnish celebrities are seen dancing and singing. She has faced criticism from opposition parties.
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Heartrending scenes of a newborn plucked alive from the rubble and a broken father clutching his dead daughter's hand have laid bare the human cost of violent earthquakes in Syria and Turkey that by Wednesday had claimed 7,800 lives.
The last two days have brought dramatic rescues, including small children emerging from mounds of debris more than 30 hours after Monday's pre-dawn quake. But there was also widespread despair and growing anger at the slow pace of rescue efforts in some areas.