Mette Frederiksen, who has led the country since 2019, was “beaten,” her office said. The police said an arrest had been made, but a motive is unclear.

Edit: it seems like the NYT missed the mark on this one.

AP reports:

Two eyewitnesses, Anna Ravn and Marie Adrian, told the daily BT that they saw a man walking toward the prime minister and then “pushing her hard on the shoulder so she was shoved aside.” They stressed that she did not fall down.