An attack at an event attended by Swedish cartoonist Lars Vilks has left at least one dead and three injured:

USA Today reports:

One person was killed Saturday when at least two gunmen opened fire at a Copenhagen blasphemy seminar in what police said was an apparent assassination attempt on a Swedish artist who had received death threats for publishing caricatures of the prophet Mohammed.

Lars Vilks was hustled into a side room of the Krudttoenden cafe by bodyguards and was unharmed. At least two police officers were wounded, Danish TV2 reported. Police said the dead victim was a 40-year-old man.

More from a woman who was on the scene: