Police are investigating an aggravated robbery which occurred at Aldinga Beach overnight.

Just before 10pm, a pizza delivery driver was walking along the Esplanade when he was approached by three men, when one them threatened him with a large kitchen knife.

The suspects demanded cash and were last seen running off along down Nevis Street with an amount of cash.

They are described as being Caucasian, aged around 19-20 years and wearing dark coloured hoodies and dark track pants.

The victim, a 19-year-old from Seaford Rise, was not injured.

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