At half past four, the fire brigade was sent to Tensta after someone had lit the fire on car tires placed at the entrance of the national office.
About 20 minutes later, a similar event took place at the Tenstas district administration. Someone had broken a box and put car tires in the room and then switched on, P4 Stockholm reported.
"It is no more than a kilometer in between, so it is reasonable to suspect that there is a connection", says Fredrik Nyhlén, guard at the Stockholm Police, on the radio.
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The fires could be extinguished before they dispersed in the building, but the police have initiated an initial investigation into serious fire attempts.
On Tuesday morning nobody was arrested and during the day a technical investigation will take place.