Woolworths K9 unit is on duty.

The Belgian Malinois, which is often used during search and rescue operations for disasters such as earthquakes and to assist the police worldwide, is among the breed of dogs that Woolworths has “employed” to keep staff and customers safe after explosive devices went off at two of its stores.

Woolworths made the announcement by sharing images of the dogs via social media, saying the dogs were at stores across the country to ensure everyone was safe.

In response to the Cape Argus, Woolworths' media office confirmed the dogs were part of their strategy to increase security measures.

The retailer said that for safety reasons, much about their security measures also had to remain confidential.