A woman who died in Hogarth Road in Ipswich on Tuesday after going into cardiac arrest has been named as 24-year-old Jade Bagley,
A post mortem examination is due to take place today to ascertain the cause of death.
Three people have been arrested and bailed on suspicion of administering a noxious substance.
Police continue to appeal to anyone with information in relation to this incident to contact Ipswich CID on 101.
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After a bright cold start to the day cloud will thicken from the west and it will become quite breezy, though for most a dry day.
It's been the coldest week in the Anglia region since January 2013 with temperatures dipping close to -8°C.