Northumbria Police have announced that five people have been arrested in connection with the death of Andrew Foster.
On Sunday (August 20) the police received a report of an assault in Gateshead.
Officers rushed to Eighton Terrace in Wrekenton.
They were told that two people had knocked on Mr Foster's door and then sprayed him with a substance.
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Andrew, 26, was rushed to hospital but sadly passed away.
A Northumbria Police spokesperson said: "Officers have now arrested two men – both aged 32 – on suspicion of murder.
"They have also arrested a man aged 34 and two women – aged 37 and 30 – on suspicion of assisting an offender.
"All are currently in police custody.
"This takes the total number of people arrested as part of the investigation to six after a 26-year-old man was arrested on suspicion of wounding with intent to cause grievous bodily harm on Monday (August 21).
"He has since been released under investigation, pending further enquiries.
"We would like to thank members of the public who have come forward to assist the investigation to date.
"People are also reminded to continue to avoid any speculation both in the community and on social media as enquiries continue.
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"Enquiries are ongoing and we would urge anyone with information, who has not yet spoken to police, to get in touch.
"Your information, no matter how small, could prove vital to our enquiries.
"Anyone with information should use the ‘Tell Us Something’ page of the Northumbria Police website or call 101 quoting reference number NP-20230820-1369."
Members of the public can also provide information and submit materials in connection with this investigation by visiting Northumbria Police’s dedicated Major Incident Public Portal online: Public Portal (mipp.police.uk)
They can also share information anonymously by calling the independent charity Crimestoppers on 0800 555 111 or visiting their website.
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