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HELSINKI (Reuters) - A student believed to have carried out a deadly sword attack at a Finnish school he attended probably acted alone and had no criminal links, police said on Wednesday.

The man was shot and wounded by police as he went on the rampage on Tuesday in a classroom at the college in Kuopio, killing one person and wounding nine.

He remains in hospital and in custody on suspicion of murder and attempted murder, said police, adding they had yet to question him and the motives for the attack remained unclear.

“At the moment it seems there’s nothing in the course of the man’s life to explain the act. In that sense the act came as a surprise,” said chief investigator Olli Toyras.

“...Police are of the opinion that the suspect was acting alone and is not, for example, tied to organized crime.”

Under Finnish law, police have up to three days to question suspects in criminal cases before bringing them before a court.

Police said the suspected attacker was Finnish, born in 1994 and a student at the school. In addition to a sabre-style sword he had carried an airgun, though it was unclear if he had used it.

They gave no other details.