Cannabis laced with crack warning

Cannabis laced with crack cocaine is being sold by dealers in Leeds to hook users on more addictive drugs, police have warned.

Detectives said a a number of people buying cannabis were unaware that crack cocaine had been mixed in.

The mixture is being sold in small amounts known as "Mach 5s" and is much more addictive and dangerous.

Police said they were investigating a number of leads and appealed for anyone with information to contact them.