A man has died in Northern Ireland and another has been hospitalised after taking an "unknown substance" police have confirmed.
Police in Mid-Ulster have issued a warning about the dangers of taking unknown substances and appealed for information following the incident.
Detective Chief Inspector Brian Foster said: “We are currently investigating the circumstances surrounding the death of a 34-year-old man from the Moneymore area late last night, Sunday,May 27. While a post-mortem examination has yet to take place to determine the cause of this tragic death a possible link to drug or substance abuse is a strong line of enquiry. A 26-year-old man remains in hospital where his condition is described as serious.
“Our investigation is at an early stage but we believe that drugs may be a factor in both incidents.
“We also believe that a number of other people may have sought medical attention last night after becoming unwell following the consumption of drugs.
“We are trying to establish the circumstances of what happened last night and I am appealing for anyone who was at the property on Northland Road in Moneymore or anyone who has any information about the incident to contact detectives based in Mid Ulster on 101.
“We would strongly advise anyone considering taking any type of substance not to do so. Our advice is very simple: Do not take illegal drugs; do not take prescription medication that has not been prescribed for you and do not mix either with alcohol. The consequences of ignoring this advice can be life-threatening."
Mid Ulster DUP MLA Keith Buchanan has expressed concern following the death.
"The death of anyone is a tragedy and my sympathies are with the family of the man who has passed away," Mr Buchanan said.
"It is very concerning that a number of people in the area have sought medical attention following taking drugs. The message must be very clear - any drug can kill but this incident highlights that no-one can ever be certain what is in a drug they may take.
I hope that those who have received treatment will make a full recovery and anyone who is concerned about a substance they have taken should seek medical attention. People should assist the police with any information they have about drugs and help them to keep our streets safer and free from these deadly substances."
Police urged the public to report drug dealers.
“If you have taken drugs or other substances and are feeling unwell please see medical attention immediately," Detective Chief Inspector Foster said.
“If you see or know of anyone who is dealing drugs in your local area, contact your local police on 101 or call 999 in an emergency. Alternatively, you can contact the independent charity Crimestoppers anonymously on 0800 555 111 and pass on any details that you may have.”