Police in Southampton have warned about a batch of dangerous pink-coloured pills they say are in circulation.

There have been reports of people taking them and then becoming violently ill.

"We are aware of two people in Southampton who have become ill since taking at least one of these pills in the last few days," said Detective Superintendent Kath Barnes.

"The basic message remains that if you introduce unknown and untested chemicals into your body, you're taking a risk with your health and potentially your life. You have no idea what effect they may have and the consequences could be lethal.

"Even if something is legal, it doesn't make it fit for human consumption."

Tests are currently taking place to identify the pills, and to find out whether they are legal.