A bomb ripped through Oslo's central government district on Friday and minutes later a gunman dressed as a policeman opened fire at a youth camp on a nearby island, killing at least 80 people altogether.
The death toll is said to be rising.
WATCH FROM YOUR PHONE - CLICK HERE
This is the biggest attack in western Europe since the 2005 London transport bombings where seven died when the bomb exploded in the Norwegian capital.
This time the death toll is much higher...and a youth camp was targeted.
"I saw young people running around, jumping into the water,"A witness said.
The gunman, Anders Behring Breivik, a 32-year-old Norwegian citizen, who is also said to be a free mason, is currently being interrogated by police.
"I have a message to the one who attacked us and those who were behind this,"Norwegian Prime Minister Jens Stoltenberg said in a televised news conference.
"No one will bomb us to silence, no one will shoot us to silence."
The bomb, which shook the city center at around 3:30 p.m. (1330 GMT), blew out the windows of the Prime Minister's building and damaged the finance and oil ministry buildings.
"This is a terror attack. It is the most violent event to strike Norway since World War Two,"said Geir Bekkevold, an opposition parliamentarian for the Christian Peoples Party.
Not only is the suspect a one-time free mason, Anders Behring Breivik is said to belong to an extreme right wing group and had a Glock pistol and machine gun registered in his name. He allegedly ran a company involved in farming "vegetables, melons, roots and tubers," and would have had access to chemical fertilizers used in bomb-making.
And crazy enough, the suspect has a Twitter account, with only one tweet, posted on July 17th that reads....
One person with a belief is equal to the force of 100 000 who have only interests.