It is still unclear how this weekend's fire in Ragn-Sell's waste facility on Ljusterögatan in the northern harbor in Malmö started.

The rescue service was alerted at 9.30 on Saturday morning and a message to the public was issued to stay indoors.

A large number of firefighters from several stations fought the fire for 24 hours and also received help from sea rescue and coast guard.

- We do not want to speculate on what caused the fire. The police have set up an investigation and we are assisting them in it, says Emma Ranerfors, press officer at Ragn-Sells.

Cameras have filmed the fire

Some time ago it burned in the same place.

What was the cause of the previous fire?

- We actually do not know.

The cause of the fire could not be determined at that time.

But since then, we have increased surveillance of the site in the form of heat detectors and cameras, says Emma Ranerfors.

According to Ragn-Sells, the cameras have recorded the entire course of events this time.

Films that have now been handed over to the police.

According to the police, a report of arson has been made.

"There is currently no concrete suspicion that the fire was started, but when there was a risk of spreading and as the fire entailed a risk of major property damage, it is investigated under this heading," the police write on their website.

Mixed waste burned up

What has burned?

- What has burned is about 200-300 tons of mixed waste.

Wood, cardboard and materials as usual go to incineration in combined heat and power plants, says Emma Ranerfors.

Why was there so much black smoke?

- I do not know, says press officer Emma Ranerfors at Ragn-Sells.

No extinguishing water leaked

The environmental administration in Malmö has, among other things, requested a written account of the course of the fire and analysis reports of the extinguishing water.

- There is no extinguishing water that has leaked.

The stormwater was closed and all extinguishing water has been collected and taken care of by Sysav, says Matilde Törnqvist, unit manager for waste and water at the environmental administration in Malmö.

Over the next few days, the waste facility will be closed while clearing work and a police investigation are ongoing.

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It is burning heavily in a recycling facility in the northern port of Malmö on Saturday morning.

Photo: Johan Dernelius / SVT