• Militants kill at least 11 in twin Norway attacks
• Norwegian Prime Minister calls crisis meeting
• EU condemns 'cowardice' of Oslo bomb blast
• Obama sends condolences to Norway and urges global anti-terror cooperation
• Britain sends condolences over 'horrific' Oslo bomb
• NATO condemns 'heinous' attacks in Norway
• Police fear explosives at site of Norway shootings
• Four shot dead at Norway ruling party meeting
• Attacks in Scandinavian countries since 1999

BRUSSELS, July 22, 2011 (AFP) - The NATO chief denounced Friday "heinous" acts of violence in Norway after twin bomb and shooting attacks against the alliance member's government and ruling party.

"On behalf of NATO, I condemn in the strongest possible terms the heinous acts of violence in Norway," said Secretary General Anders Fogh Rasmussen.

"I would like to convey my sincere condolences to the Norwegian government, the Norwegian people and the families and loved ones of all those who suffered in these cruel and cowardly acts," he said.

"Our solidarity with Norway remains steadfast. NATO countries stand united in the battle against these acts of violence."

Norway is taking part in NATO's missions in Libya and Afghanistan.

Norwegian combat jets have conducted bombings in the air war against Moamer Kadhafi's regime in Libya, but the country is withdrawing the warplanes at the end of the month.

The alliance member has around 500 military personnel in Afghanistan, primarily in Kabul and in the north.

Militants staged twin bomb and shooting attacks against Norway's government and ruling party Friday, as a deadly explosion ripped through ministry buildings and a gunman opened fire at a Labour Party youth meeting.