THREE people have been arrested after two men collapsed in a Horsham park after taking an unknown substance.

A 18-year-old from Brighton, a 24-year-old from Ockley in Surrey and a 17-year-old from Chichester were arrested on suspicion of being in concerned in the supply of class A drugs.

The Brighton teen was also accused of possession of class A drugs.

All three were released under investigation.

Both men are making progress in hospital.

A spokeswoman for Sussex Police said: “There is always a risk in taking any drugs and we urge people to stay safe.

"The devastating effect of drug use can have a much wider impact that just on the person taking them.

“Most illegal drugs are cut with other substances, substances which could have an adverse effect on your body and cause serious illnesses and in extreme circumstances, death.

"The best advice is not to take any drugs."