Police investigate ‘bomb’ found on Stockholm attack truck as they say terror suspect in custody was known to intelligence services

Swedish police say they believe a 39-year-old suspect arrested on Friday was behind the truck attack which left four dead and 15 injured. Authorities declined to comment on reports that the suspect was a father-of-four from Uzbekistan

Some reports suggested he had previously posted jihadist propaganda on his Facebook page and had images of people injured in the explosion at the Boston marathon in April 2013.

Police found explosives in the truck used in the attack in Stockholm, Swedish television said on Saturday citing multiple unnamed police sources. Reports claimed the improvised explosive device (IED) was  packed into a suitcase inside the hijacked beer truck.

If the reports prove accurate, it would clearly indicate that the terrorist was not a ‘lone wolf’ but part of a wider cell. and that the attack required planning.  It is not clear why the IED, if it was in the truck, failed to detonate.  The death toll would have been on a catastrophic level had it done so.

Dan Eliason, head of Sweden’s National Police, told a news conference Saturday that “there is nothing that tells us that we have the wrong person.” He said police also found an object in the truck that “could be a bomb or an incendiary object, we are still investigating it.”

Swedish prosecutor Hans Ihrman confirmed that the suspect is a 39-year-old Uzbekistan-born man but declined to name him. The head of Sweden’s domestic intelligence agency said the man had been on authorities’ radar some time ago.