German police said they suspected militant anti-nuclear protesters were behind a fire started late on Tuesday in trailers under an iron bridge near the northern town of Hitzacker through which the nuclear waste transports pass.A spokesman for the regional government said there was no alternative route the reprocessed waste could take to the nearby storage site at Gorleben. Rail traffic over the bridge was stopped after the fire, officials said.
A shipment of containers carrying German nuclear waste reprocessed in France was due to return in the coming weeks.
The stretch of railway has frequently been the target of attacks by anti-nuclear activists, who earlier this year managed to briefly hold up the resumption of shipments of waste from reprocessing in France by chaining themselves to the tracks.
The shipments were stopped for several years due to safety concerns but were resumed after a deal was reached to gradually phase out nuclear power in Germany over the next two decades.