Tesla was forced to halt production at its assembly plant outside Berlin early Tuesday after someone set fire to a nearby high-voltage pylon, causing a blaze that cut off electricity to the factory and surrounding region, the police said.

The police in Brandenburg, the state where the plant is, said they responded to the early-morning fire at a high-voltage power mast in a field near Tesla’s plant. The fire did not damage the building, but it caused power to be cut at the plant and across the wider region, home to some 60,000 people.