LACEY, Wash. -- Report of another attempted child luring in the area has investigators looking a second suspect in the wake of a string of attempted lurings.

Police said two girls, ages 9 and 10, were walking home from Lydia Hawk Elementary School when they were stopped dead in their tracks.

The girls said a man standing next to a white cargo van was motioning for them to come toward him. When the man pulled out money from his pocket, the girls said they bolted back to school and alerted school officials.

"We will be sending a letter home to parents, telling them what happened," said Courtney Schrieve of North Thurston Public Schools.

Thursday's incident is the latest in a string of attempted luring incidents.

"This is the fifth letter we'll be sending home," said Schrieve.

Three weeks ago, someone tried to abduct Terri Long's daughter when she went out into the front yard to pick up a dropped toy. Police said a man tried to get the 8-year-old girl inside a red car in the 5700 block of Stockton Street Southeast.

"He got out of the car and went towards her, and she realized, 'OK, this isn't good.' And she just dropped everything she had and came running in the house," Long said.

That same week, an 11-year-old boy was chased by two men after he got off the school bus in the 6300 block of 57th Ave SE. The two men drove up in a white van with pink lettering spelling the word "Flowers" on the side.

Investigators believe Thursday's incident is not connected to the previous cases based on the girls' description of the man who tried to lure them.

The girls said the man was a white man in his early 40s. He's said to stand 6 feet 3 inches tall with a medium build. The girls said the man had dirty blond hair in a slick-back style and a walrus mustache.

School officials note, however, that the cases do share similarities.

"One was a car, one was one type of van, one was another...but the white van seems to be a recurring theme," said Schrieve.

District parents, meanwhile, simply want the nightmare to end in their neighborhoods.

"Eventually, hopefully, they are going to get caught. I hope they get caught before they get a kid," said Long.

School officials are advising caution on behalf of the students.

"We just want to emphasize that kids walk home together, have the buddy system, and if they see something suspicious, report it to an adult immediately," said Schrieve.

Anyone with information on any of the attempted lurings is urged to contact police.