BUCHAREST, Romania (AP) — Romanian and German archaeologists have discovered a prehistoric fortress dating back as far as 3,400 years in western Romania.

Archaeologist Florin Gogaltan told The Associated Press on Tuesday that the find represented "one of the biggest prehistoric fortresses in Europe in the Bronze Age."

Gogaltan, a researcher at the Archaeology Institute in Cluj northwestern Romania, said the team used specialized archaeological magnetic equipment to take underground measurements. Last week, they completed a dig uncovering 55 hectares (135 acres) of the 80-hectare (198-acre) sit...