FLAGSTAFF, Ariz. -- Flagstaff police need your help looking for a man reportedly grabbing teenage girls who are walking to and from area schools.

Sgt. Cory Runge, with the Flagstaff Police Department says detectives have identified a pattern. They say a man, reportedly in his 20s or 30s, has been walking up to teen girls, or driving near them in a silver SUV. Runge says the man grabs or trying to grab the girls in their rear ends, and also throws cat calls at them.

"He's approached at least four to five, 14 to 16-year-old girls cat calling, trying to grab them, and a couple times he tried to get them in to his vehicle," Runge says.

"We have detectives assigned to the case and we want the public to know we believe this guy is out there. It's possible there are two men, but not likely," he said.Runge says two incidents have occurred on Soliere Road near Knoles Elementary School, two others were in the Sunnyside neighborhood and one incident happened by the Francis Short pond near Flagstaff High School.

Just yesterday, the Flagstaff Unified School District called some Knoles parents warning them about a man approaching a female student near a bus stop near Knoles. He is believed to be the same suspect from the other incidents. Yesterday, the suspect was in a silver SUV.

If anyone has any information, they're encouraged to call Flagstaff Police at (928) 774-1414.