A woman, 24, was killed instantly when the powerboat she was riding in struck Copper Island on Shuswap Lake in the B.C. Interior, police said Sunday.

Two other women and two men were injured in the incident late Saturday night and transferred to Salmon Arm hospital for treatment, Chase RCMP Const. Robert Claypool said.

When released from hospital, the male driver of the nine-metre boat was taken into police custody in Chase, while the male passenger was taken to the Salmon Arm RCMP detachment for bail violations.

Police said they're treating the incident as a criminal investigation.