Four men and a woman have been arrested after two random stabbings in Hereford left two men seriously injured.
Police say they can find no motive for the attacks and have described them as vicious.
They believe the stabbings could be linked with a murder 140 miles away.
Victoria Davies reports.
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Strong, bitterly cold winds, with sunny intervals and scattered snow showers.
Old Market Square in Nottingham was a blaze of orange, green and white as hundreds brave the blizzard-like conditions.