Police say a gardener tending a lawn at Warsaw University has found a World War II-era mortar grenade and that surrounding university buildings have been evacuated.
Police say the worker digging with a spade in the library lawn found the 14-inch (35-centimeter), 8-pound (3.5-kilogram) grenade early Tuesday. They say that no one was hurt when some 300 people left the buildings, and that experts have taken the grenade to a military facility to detonate it.
Warsaw was heavily bombed by Nazi Germany during the war. Unexploded bombs and grenades are still found regularly.
