Thieves who stole a potentially deadly drug from the University of Cambridge may believe it is ketamine or a similar illegal intoxicant, according to police.

Cambridgeshire Police warned that this means rogue 'ketamine' could be on the streets.

There is a threat to human life if the drugs, which are used to euthanise animals, are sold or used by those who took them.

A Cambridgeshire Police spokeswoman said: "The medication they have taken is extremely dangerous if taken and would pose a threat to life to any individual who were to consume it."

Seven bottles of the euthanasia medicine were stolen from a vehicle at the University of Cambridge's Department of Veterinary Medicine in Madingley Road, Cambridge.

The theft took place between 17:00 GMT on Wednesday and 10:00 on Thursday.

A manhunt is now underway to catch those who stole the drugs.