Linköping blast: Explosive device blew up outside building
UPDATED: A major explosion hit an apartment building in Linköping, southern Sweden, on Friday morning, with around 20 people injured.
Police suspect the powerful explosion that blew out several apartment windows in the centre of the city at about 9am was caused by "an explosive device deliberately placed outside" in the area of Hamngatan/Ågatan, police investigator Magnus Skoglund told a press conference in Linköping on Friday afternoon.
However, it is not yet clear exactly what exploded or who put it there. Skoglund said they did not know for sure who was responsible, but that police had a "working hypothesis" they were currently investigating.