Police probe fire at Berlin power station after series of mysterious attacks on grid

• Police are investigating a fire and an apparent break-in at power substations across Germany, further escalating security concerns over a series of sabotage attacks on the power grid.
• The fire broke out at a construction site in Berlin’s Mitte district early on Monday morning before spreading to a transformer substation, police said.
• Fire crews were brought in to tackle the blaze through the night while police investigators examined the site.