Swedish cartoonist Lars Vilks
Swedish cartoonist Lars VilksReuters

A Swedish cartoonist believed to have been the target of one of the deadly weekend Copenhagen shootings said on Tuesday that Danish police had underestimated the terrorist threat since January's Paris attacks.

"The attacker had good weapons, he had better weapons than the police... There was an escalation since the Charlie Hebdo attacks (in Paris) and the Danes had not caught onto that," Lars Vilks, who has been forced back into hiding since the attack, told AFP.  

"They did not step up security on Saturday. It was the same as we had previously... they must consider whether they need to be better armed," Vilks added, referring to the cultural center in Copenhagen that was the focus of the first of the twin attacks.

It took place as the center was hosting a forum on Islam and free speech.

The 68-year-old cartoonist believed to have been the target of the shooting emerged unharmed after a gunman fired off dozens of rounds, killing a documentary film maker and injuring three police officers.

He later attacked the Copenhagen synagogue where he murdered a Jewish man standing guard outside.

Vilks - who has faced several death threats since his cartoon portraying the founder of Islam Mohammed as a dog was published in a Swedish newspaper in 2007 - has lived under police protection since 2010.

Swedish police said Monday they had moved the artist from his southern Swedish home to an undisclosed "safe" location.