Chief Supt Paul Anderson held a press conference after a man was assaulted in Worksop town centre and died.
Media gathered outside Worksop Police Station in Potter Street for an update on the investigation.
Chief Supt Anderson said several arrests had been made, and that Notts Police was ‘confident’ these were directly related to the inquiry.
But he appealed for anyone who was in the Bridge Street area of Worksop on Saturday evening to come forward - especially if they saw a group of youths.
If you saw the incident or have any information call Notts Police on 101, quoting incident 771 of 6th April 2013, or Crimestoppers anonymously on 0800 555 111.
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