A man has been charged by police investigating three deaths linked to a suspected rogue batch of ecstasy pills, as another person was admitted to hospital after taking the drug.
Police have urged people to hand in the red triangular pills marked with a distinctive Superman logo after a 37-year-old man became unwell in Ipswich today, having taken one of the tablets.
It follows the deaths of two young men in the town on Christmas Eve and New Year's Day and a third man in Rendlesham, Suffolk.
Adrian Lubecki, 19, from Ipswich, has been charged with being concerned in the supply of controlled drugs (ecstasy) and possession with intent to supply a class B drug, Suffolk Police said.
He was remanded in custody to appear at Ipswich Magistrates' Court tomorrow.
A 20-year-old man and a 26-year-old man from Ipswich, who were arrested on suspicion of being concerned in the supply of controlled drugs, have been released on police bail pending further investigation. Both are due to return in mid-February.
Suffolk Police believe three men who have died and another who is seriously ill in hospital may have taken drugs from the dangerous batch.
A labourer named locally as John Hocking, 20, died after being found seriously unwell in Chestnut Close in Rendlesham, Suffolk, at 7.10am on January 1.
A second man, named in a reports as Lithuanian labourer Gediminas Kulokas, died in Provan Court, Ipswich, at 9.40am the same day. He was reportedly celebrating his 24th birthday.
Another man from the same address was taken to hospital in a serious condition.
Detectives have said those cases may be linked to another drugs-related death on Christmas Eve after a man, named in reports as 22-year-old Justas Ropas, died in Bramford Lane, Ipswich.
West Mercia Police also believe the rogue drugs could be linked to the death of a 27-year-old man, named in reports as Daniel Bagnall, who was found dead at a property in Ketley, Telford, on New Year's Day.
Meanwhile, Suffolk Police said a man arrested on suspicion of being drunk and disorderly in Ipswich town centre earlier today became unwell and told officers he had taken a pill marked with a Superman logo.
He was taken to Ipswich Hospital but has since been discharged.
Chief Superintendent Jon Brighton said: "It is concerning that we have another report of a member of the public requiring medical treatment after taking a pill of the same description already under investigation.
"I would like to re-e mphasise the messages we have given out so far - if anyone is in possession of these distinctive looking pills, please do not take them or pass them on, please hand them in to police or one of the other agencies listed.
"Our number one priority is to remove these drugs from our communities and prevent any further harm."