A pizza delivery driver was assaulted in Warrawong on Wednesday night, the fourth such incident across the Illawarra and Shoalhaven this month.
The driver delivered a pizza to a Wegit Way home about 6.50pm when the incident occurred.
While serving the pizza, he spotted a male teenager take his mobile phone from his car. He approached the thief to ask for it back but was punched in the face.
He returned to work and police were called. The dog unit was dispatched but the assailant was not located.
On August 17, a pizza delivery driver was robbed at knife-point at a unit block on New Dapto Road in Wollongong.
The offender approached the driver and held a kitchen knife to his shoulder blade, demanding his money, wallet, keys and phone.
A 19-year-old delivery driver was approached by two men in Mangerton on August 11, who demanded the pizzas and the driver's wallet and phone. One man was armed with a metal pole. A man was arrested in relation to this incident.
Further south, an 18-year-old pizza delivery driver was threatened when confronted by two men on Antares Close in East Nowra on Tuesday night. A small amount of cash was taken from a purse in the front of the car.
A similar incident occurred on the same street in June, when a 22-year-old was forced to hand over cash and pizzas to two men, one armed with a metal bar, before being elbowed in the face.
Lake Illawarra Acting Inspector David Wheatley said a connection had not been established between the Warrawong incident and others across the region.
Wollongong Inspector Dan Richardson said police did not believe the two Wollongong incidents were linked to the one at Warrawong.
He said delivery drivers should take note of any details in phone orders that rang alarm bells, such as people requesting change for a large amount of money.