The freighter, which was also carrying lithium batteries, derailed in northern Sweden, likely due to heavy rains, according to the local authorities

A freight train carrying ammunition and lithium batteries has derailed in northern Sweden, according to local officials.

The accident, which occurred at around 8am on Sunday near Skorped, in the Vasternorrland region, is believed to have been caused by heavy rainfall, which damaged the railway infrastructure. It is unclear what type of ammunition the train was transporting or what its destination was.

Emergency services are managing the dangerous cargo, after which the site will be cleared and the full extent of the damage assessed. "Only then can we make a forecast for the work. It will be a longer stop, but I can't say how long," Peter Jonsson, a spokesman for the Swedish Transport Administration, told the broadcaster TV4.

According to the Transport Administration, it will take weeks to restore the railway.

Pictures from the scene show sections of rail suspended above rapidly rushing water, with four carriages behind the locomotive having derailed and partially submerged in a nearby lake. Local authorities cited massive downpours in the area over Saturday and Sunday, which washed out roads and strained infrastructure. A timber train also derailed on the same line between Solleftea and Kramfors further to the south.

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Sweden officially became a NATO member last year, ending more than two centuries of neutrality. Like many other Western nations, it has significantly ramped up its defense production. In 2024, the Swedish Defense Materiel Administration (FMV) struck a deal with Nammo, a Norwegian-Finnish weapons producer, to boost production of 155mm artillery shells.

Officials said the agreement was aimed at "increasing the possibility of supporting Ukraine and at the same time strengthening the security of supply of artillery ammunition in Sweden and the Nordic countries in the long term."

Moscow has denounced Western arms shipments to Ukraine and NATO as saber-rattling. Kremlin spokesman Dmitry Peskov has lamented that the peace settlement process is being hindered by "reckless European militarism."