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The city of Edmonton came to a halt to honour four killed members of the Royal Canadian Mounted Police.

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City streets turned red as thousands of RCMP officers marched in their traditional scarlet tunics.

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The hats of the dead men were carried to a memorial service attended by relatives, colleagues and political leaders.

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The service, for Anthony Gordon, Leo Johnston, Brock Myrol and Peter Schiemann, was televised live across Canada.

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Earlier in the week, colleagues buried Peter Schiemann who - along with the others - had served for less than four years.

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The four constables were shot and killed on a farm north-west of Edmonton by a man who was also found dead.

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Canada has been horrified by the worst loss of RCMP life since 1885, which has also led to questions and criticism.