A teenager has died and four others have been taken to hospital after apparently taking a drug called 'Mortal Kombat'.
Police in Scotland say the drug - thought to be an ecstasy-type compound - is distributed in red tablets with a dragon imprinted upon them.
Regane MacColl, 17, from Clydebank, collapsed after taking the drug while at The Arches nightclub in central Glasgow on Saturday.
She died in hospital on Sunday.
A further three men and one woman were also admitted to hospital in separate incidents over the weekend after feeling unwell from taking drugs.
One woman, aged 19, was admitted to Glasgow Royal Infirmary on Saturday night and three men aged 18, 26 and 27 were taken to Crosshouse Hospital in Kilmarnock on Friday night.
Police said early stage enquiries have revealed the Mortal Kombat tablet is thought to be the common link between the incidents.
Mortal Kombat has so far referred to a combination of mephedrone and ketamine, according to the Urban Dictionary.
But it is thought this drug may be different.
Tests are being carried out to establish exactly what the drug contains but the results may take some time.
The incidents come days after police issued a warning over other pink ecstasy-type tablets with the Superman logo on one side which were found to contain methoxyamphetamine (PMA).
PMA has previously been connected to a number of serious adverse reactions and fatalities.
