Animal-focused charity SAFE wants an immediate ban on all greyhound racing after three dogs died in one week this month.

Greyhound Racing New Zealand has suspended racing at Manukau Stadium for five weeks.

It  says concerning increases in injuries require immediate intervention and more investigation.

SAFE investigations head, Will Appelbe, says racing's moved to Cambridge, but there've been just as many injuries.

"It's just moving the problem to another location. Dogs will continue to be injured, continue to have serious injuries like fractures- and occasionally, sadly, that results in the death of greyhounds."

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