British expats in Spain have been warned to beef up their security systems after falling prey to a 'terrifying' burglar who remains at large.

Chilling footage shows the moment a man in a mask and a grey hoodie breaks into a series of villas between San Pedro de Alcantara in Marbella and Benahavis, on the Costa del Sol.

The brazen thief, dubbed the San Pedro Prowler, is seen picking locks with a sharp implement, which locals said he could use as 'a weapon if he needs it to be'.

The menacing figure then calmly walks off with his hands filled with goods, including luxury handbags and jewellery.

Among the recent stolen items include €10,000 in cash and a €30,000 watch.