The Police Service of Northern Ireland (PSNI) has issued an alert over a contaminated supply of cocaine.

It says the batch has a "potential increased risk".

The PSNI said it received information that there may be a contaminated supply in the areas of Antrim and Derry.

The information suggests that anybody consuming these drugs could experience "serious adverse effects".

Detective Superintendent Bobby Singleton is from the PSNI's Organised Crime Unit.

He said: "All drugs carry risks and have the potential to be a poison.

"I'd appeal to anyone with any information on these or other suspected drugs in their community to contact police".