On a day when thousands of students across the country are expected to walk to and from school for International Walk to School Day, there is an alert for parents.
Over the past two weeks, there have been several reports of children being followed by suspicious drivers.
The latest incident occurred Tuesday afternoon near Schiff Elementary in Fort Bend ISD.
According to school officials, a third grader was riding his bike home from school on Sienna Ranch Road when a black truck drove up alongside him.
The boy reported that a female passenger inside of the vehicle called out for him to come over to the truck.
The student quickly turned, and rode his bike home. He was not hurt in the incident, but parents are concerned.
The school sent out a letter from the principal of Schiff, warning parents and urging them to talk to their children about safety measures.
The letter read in part: "This is a great time to talk about safety with students who walk or bike. We ask that students stay with a group and avoid walking or biking alone. Students should pay attention to their surroundings and be on the lookout for suspicious people and vehicles."
The Fort Bend County Sheriff's Office said it will increase patrols in the area.
A 12-year-old girl told authorities that a woman drove up to her and tried to lure her into a white van or SUV as she was walking to a friend's house after school on Thursday.
She was in a Katy neighborhood at Silent Flight and Merline Roost Drive.
This is the fourth stranger alert in Katy ISD in just the seventh week of school. Compare that to seven in the district by the same time last year.
A spokesman says Katy ISD is not more dangerous than other area districts.
He credited the number of reports to vigilant parents who are encouraged to communicate with their children and in turn communicate these incidents to authorities.
"They're reporting these incidents to police," said spokesman Steve Stanford. "That gives us an opportunity to send these bulletins out."
The woman who tried to lure the girl is described as a white or light-skinned Hispanic female in her late 20s to early 30s. She has dark brown hair and was wearing a ponytail and sunglasses. She was driving a white SUV or service van.