Two men have been arrested in connection with an unexplained death in Horbury.
A 26-year-old man was found dead at a house on Quarry Hill just before 7pm on Sunday.
Another man, also aged 26 from Horbury, was taken to hospital where he is being treated after being taken ill.
A 32-year-old man, who was at the house, was arrested on suspicion of permitting the use of a premises for the use of controlled drugs.
And a 42-year-old man was later arrested on suspicion of the supply of Class A drugs.
A full post mortem and toxicology tests will be carried out to determine the cause of death.
Anyone with any information or who saw any suspicious behaviour at the house should contact CID on 101 or Crimestoppers anonymously on 0800 555111.