Eleven Danish soldiers and two Afghan interpreters were wounded in an attack by insurgents in southern Afghanistan late Tuesday, the Danish military said in a statement Wednesday.

It did not give details on the degree of the soldiers' injuries.

The military said the attack took place shortly before a sand storm, to the north-east of the city of Gerehsk.

Because of poor visibility, the injured soldiers could not be evacuated by air and were instead driven to a nearby Danish base before being evacuated by helicopter to the Camp Bastion hospital at Danish headquarters.

Attacks against Danish soldiers have intensified in Afghanistan over the past weeks, with three previous attacks injuring a total of 10 soldiers since April 25.

Some 750 Danish troops are deployed in Afghanistan, as part of the International Security Assistance Forces mostly based in the southern Helmand province under British command.

With 29 soldiers killed since deploying there in late 2001, the Scandinavian country of 5.5 million people has suffered more deaths than any other country proportionally to the number of troops it has in ISAF.

Two other Danish soldiers have died in Afghanistan outside of combat, one committed suicide and the other died of a heart attack.

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