"There's nothing that's strikingly similar."
On August 17, it was alleged a 12-year-old girl was walking on Solway St towards Salesyard Rd, Oamaru, when she was stopped by a man who tried to get her into his red utility vehicle.
Wilkinson said police were yet to identify the van and man involved in the latest alleged attempted abduction.
The man was described as Caucasian, but with olive skin.
He was believed to be aged in his 60s, had a "deep, angry voice", and was believed to be wearing a black beanie and a black short-sleeved T-shirt.
The van was described as a green, 1980s Japanese model, with a flat front. The paint on its roof was peeling.
The police would like anyone with details on a registration number of the van to contact them.
Crimestoppers 0800 555-111.