A man has died after being found unconscious at a house in Wythenshawe.
Police were called to Pembury Close, Poundswick, just before midnight on Sunday after reports of fighting.
A 27-year-old man is being questioned on suspicion of murder.
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Cold overnight with frost and ice risk. Sunshine and showers Friday
Violence flared on the streets of Liverpool on Wednesday night as dozens of men clashed in a brawl that saw chairs and missiles thrown.
Convicted killer Venables has been returned to prison after he was caught with child abuse images for a second time and arrested last week.