Explosives have been found at a Sweden's largest nuclear power plant, prompting the country to ramp up security in all of its reactor centres.
A "fist sized lump" of explosives was found by police sniffer dogs at the Ringhals plant in the south west of the country during a routine check, reports the BBC.
Police are investigating possible sabotage, with a force spokesperson saying the truck driver was not a suspect.
The area around the truck has now been cordoned off and evacuated, however bomb disposal experts said the explosives lacked a detonator, so a major explosion would not have taken place in any case, reports Associated Press.
There are four reactors at the Ringhals plant, around 45 miles from the southern city of Gothenburg. The nuclear power plant generates approximately 20% of Sweden's electricity, is owned by Vattenfall and E.ON.
The plant was criticised last year for its lack of security after a fire broke out because a cleaner left a vacuum cleaner in the containment building.
In the wake of the finding of the explosives Sweden has now increased its security up one notch, to two, on a four point scale.