Chocolate Santas sold by The Co-op are being recalled after batteries were found inside two of the hollow figures.

The high street chain blamed two "alleged tampering incidents" for the find, but said there had been no indication of any blackmail demand or threat.

In a statement, the company said it had informed police and the Food Standards Agency and launched a national product recall.

To date, some 165,000 of the Germany-manufactured Santas - which cost £1 - have been sold.

The two with batteries inside were found in separate locations.

A spokesman said the investigation was ongoing, and urged anyone who is concerned to call 0800 0686 727.

No other products are affected, he added.