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A teenager was in custody after a masked man ran onto the field during a Swedish soccer game Monday and attacked the visiting team's goalkeeper, authorities said.

The game, between Jönköping Södra and visitors Östersund, was canceled after the man tackled Östersund goalkeeper Aly Keita in the final minute with the score tied at 1-1.

A masked spectator runs onto the field Monday during a Swedish League soccer match between Jonkoping Sodra and Ostersund in Jonkoping. Mikael Fritzon/TT / EPA

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Police didn't identify the suspect other than to say he is 17 years old. They said he told investigators that he had left a bomb in the stands, but no explosive devices were found, Reuters reported.

Östersund's coach, Graham Potter, told the BBC: "Keita is shocked — he's not doing so well."

Keita, 29, told reporters: "I am shocked and angry. It is awful that something like this could happen."

A fellow player comes to the aid of Ostersund goalkeeper Aly Keita as he is attacked by a masked spectator Monday during a Swedish League soccer match between Jonkoping Sodra and Ostersund in Jonkoping. Mikael Fritzon/TT / EPA

The Swedish Fotbollförbundet, or football association, said in a statement that the game wouldn't be resumed and that its disciplinary committee would decide whether it would be recorded as a tie or whether the away team Östersund would be awarded a 3-0 victory.

A fellow player tries to intercept a masked spectator who attacked Ostersund goalkeeper Aly Keita during a Swedish League soccer game Monday between Jonkoping Sodra and Ostersund in Jonkoping. Mikael Fritzon/TT / EPA

That would happen only if Jönköping Södra, the home team, were found to have been at fault in its security measures, the association said.

Security officials detain a masked spectator who ran on to the field Monday before assaulting Ostersund goalkeeper Aly Keita during a Swedish League soccer match between Jonkoping Sodra and Ostersund in Jonkoping. Mikael Fritzon/TT / EPA

In April, a game between IFK Göteborg and Malmo was canceled when Göteborg fans threw a firework on the field in the direction of a Malmo player. The player grabbed a corner flag and hurled it into the crowd like a javelin.