A significant number of officers are involved in this investigation and it is being treated as a murder inquiry.
Work is ongoing to establish the exact cause of this death and the dead man is yet to be formally identified.
Although arrests have been made in this inquiry, I would like to reiterate the fact that we remain keen to hear from anyone who believes they may have information that could aid our investigation into this unexplained death.
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East Midlands weather: Clear but becoming cloudy with some rain
West Midlands weather: Dry and clear, but becoming cloudy with rain.
Police say a man who who received multiple stab wounds after being attacked by a group in an alleyway is 'lucky to be alive'.