Bomb-making gear found at Finn's home

Police investigating Finland's worst peacetime bomb attack have found material for making bombs at the home of the only suspect, a chemistry student who was among the seven killed by the blast.

The National Bureau of Investigation said yesterday the motive for the devastating explosion at a busy shopping centre on Friday evening, which injured some 80 people, remained a mystery.

"He was likely a skilled bomb maker," the bureau's Deputy Chief, Jari Liukku, said. The explosives used were unusual and different from those used by the military.

Finnish media said police had found internet addresses and other information on the suspect's home computer that suggested he had obtained bomb-making instructions from websites. His parents are being counselled.