A man in his 20s was taken to Hospital after being found very unwell outside McDonalds in Redhill. He remains in a serious condition.
Police and the ambulance service attended the scene in Station Road around 4:20pm on Tuesday afternoon and the area was cordoned off for a while.
Two other men were arrested later in the day in the same area on suspicion of being involved in the the supply of Class A Drugs in connection with this incident. They remain in police custody.
A number of enquiries are being carried out in the vicinity and anyone who has information which may assist with the investigation is urged to contact Surrey Police quoting reference 45150111097. Information can be passed anonymously to the independent charity Crimestoppers on 0800 555 111.
Or call 101