Health warnings over 'legal high'

Twelve people are being treated in hospital in West Cumbria after taking the legal drug known as Ivory Wave.

It made some of those patients suffer hallucinations which led to attacks on the medical staff who're trying to help them.

Doctors say it's more dangerous than mephedrone, which is now illegal.

The BBC's Keith Akehurst spoke to Dr Kate Wilmer from West Cumberland Hospital and Detective Inspector Jason Robinson from Cumbria Police.