Police have expressed concern over Facebook's Market place after two brothers from Nelson Mandela Bay were shot and killed on yesterdaay after they responded to an advert about a TV sale.

Police spokesperson Colonel Priscilla Naidu, said the deceased brothers Aaron Alberts, 19, and Kyle Alberts, 30, from St Albans were under the impression that they were going to buy a TV set which was advertised on Facebook Marketplace.

Naidu said the brothers were lured to a house in Ceru Steet in NU 5 in Motherwell where they were informed by the house owners that they knew nothing about a TV sale.

?While still at the address, they were approached by two suspects who shot and robbed them. Their cellphones, cash and vehicle were all taken but their bakkie was recovered not far from the crime scene,",said Naidu.

Naidu said the Provincial Serious and Violent Crime Investigation Unit in Gqeberha are investigating two cases of murder.

"Police are warning the public that a heinous act such as this, serves as a blatant reminder of the dangers associated with online transactions.We urge the public to exercise caution and diligence when using social media platforms to make purchases.Verify the credibility of sellers, conduct transactions in safe locations, and consider involving law enforcement if there are any suspicions."