Baby snatched from its pram and thrown to the floor outside a hospital by teenager who was on a legal high called Salvia Teenager threw baby to the ground after mother started talking to him Another boy is in hospital today after taking the same drug Salvia Divinorum can produce vivid hallucinations in users Police have advised users to seek medical help if they have taken any By Olivia Williams Legal high: Salvia extract, similar to one the 16-year-old smoked before the attack A 16-year-old boy has been arrested today for grabbing a stranger's baby and throwing it to the pavement while high on a legal drug called Salvia. The teenager was arrested on suspicion of assault in Newbiggin-by-the-Sea, Northumberland this afternoon. Witnesses say he pulled the baby out of the pram and hurled it to ground after the mother started talking to him because he appeared to be in distress. The child was checked over at Wansbeck Hospital in Ashington but was luckily unharmed. Northumbria Police issued an urgent warning after it emerged that not only was the boy under the influence of Salvia but another local teenager had been hospitalised today having smoked a Salvia cigarette. The boy, a pupil at Ashington High School, is now in a stable condition having collapsed. Salvia Divinorum is known as Diviner's Sage and can produce vivid hallucinations and psychotic episodes in users. According to FRANK, the government drug education service, physical harm resulting from its use is usually the consequence of people injuring themselves or others whilst under its influence. It is one of the most powerful known hallucinogenic herbs. It is often marketed as 'herbal ecstasy', can be either smoked or chewed, and can easily be bought online. Superintendent Mick Paterson said: 'Our advice is, just because it says "legal" on the packet does not mean it is safe. Powerful: Salvia, which can be smoked or chewed, is one of the most powerful hallucinogenic herbs you can buy Easily available: Legal drugs such as these can be bought cheaply online and in shops People appear to be suffering some particularly nasty side effects to this substance, Salvia, and we are concerned that there appears to be a quantity of it circulating in the Ashington area at this time. He advised: 'If you are in possession of this substance do not use it, and if you have taken it seek medical assistance at once.' Northumberland police are making inquiries in the area and are speaking to witnesses to find out what happened. Officers asked anyone who witnessed the incident or who has information about it to contact police on the 101 non-emergency number.