Mourners gather outside school in Finland following fatal shooting

People bring candles and flowers at the school in Finland (Roni Rekomaa/Lehtikuva via AP)

Mourners have gathered outside a school in southern Finland a day after a 12-year-old boy was killed and two girls of the same age were seriously wounded in a shooting.

The young suspect, who attended the school, was apprehended less than an hour later.