Three people arrested on suspicion of administering a noxious substance following the death of a woman in Ipswich have been released on police bail.
Police were called to a house in Hogarth Road in Ipswich at about 11:30pm on Tuesday March 12.
The woman, who was in her twenties, died at the scene after suffering cardiac arrest.
A 33-year-old man, a 21-year-old man and a 38-year-old woman, who are all from Ipswich, were arrested on suspicion of administering a noxious substance.
They were taken to the Martlesham Police Investigation Centre and have now been released pending further enquiries.
They are due to return to Martlesham Police Investigation Centre on Wednesday 8 May.
Police are appealing for information.