OTTAWA, Ontario - Canada's prime minister says Wednesday's fatal shooting of a Canadian soldier in Ottawa and a hit-and-run that killed another earlier this week are grim reminders that Canada is not immune to terrorism.

Canada's parliament attacked, soldier fatally shot nearby

"But let there be no misunderstanding, we will not be intimidated. Canada will never be intimidated," Prime Minister Stephen Harper said in a televised address to the nation.

Harper says the two, separate attacks will strengthen Canada's resolve to work to keep Canada safe and work with allies around the world to fight terrorist organizations.

Harper spoke hours after a gunman shot a soldier guarding a war memorial then stormed Parliament before he was killed. On Monday, a man allegedly inspired by radical Muslim beliefs rammed his car against two Canadian soldiers, one of whom died.