Published: Jan 31, 2011 5:42 PM EST
Updated: Jan 31, 2011 2:44 PM EST

CAIRO (AP) - Egypt's military says soldiers have detained about 50 men trying to break into the country's national museum.

They say it's the latest attempt to loot some of Egypt's archaeological treasures.

Snipers are stationed on the roof of the building, because of fears that the unrest sweeping Cairo could bring the loss of some of Egypt's ancient relics.

Dozens of troops are patrolling the grounds. Troops say they have orders not to shoot, but to protect the building and its contents.

The majority of the museum is intact, but there are signs of an earlier break-in.

On the second floor, one case containing a gold trinket, two small rods and other small artifacts was broken, and another case was smashed on the first floor. At the museum's gift shop, broken glass, souvenirs and postcards littered the ground.

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