Children and parents are being urged to take care in Sydney’s west following two possible child approaches in recent weeks.

At around 3.25pm on March 2, police were told a nine-year-old boy had been walking in Park Road at Wallacia when a white/grey van pulled up next to him.

The driver spoke to the boy who was so concerned he screamed.

The male driver is described as having white-blond hair and had his face covered.

There was another suspected incident in the area on February 16.

A 10-year-old girl was walking along Mackay Drive at Silverdale when she passed a stationary vehicle.

An occupant of the vehicle approached the girl and spoke to her.

Police now believe this incident was a just misunderstanding.

Anyone with information should call Crime Stoppers on 1800 333 000.