PARENTS are being urged to be vigilant after a man tried to get a group of boys into his car.
Hundreds of parents in the East Riding have been sent letters warning them about the alleged accosting close to North Ferriby Primary School.
Police are investigating whether it was an attempt to snatch the children.
Headteacher Russ Orr said letters have been sent to parents of the 260 pupils at the school.
He said: "It could have been innocent, but it may have been something more sinister. We immediately held an assembly reminding children about stranger danger and organised for letters to be sent to parents."
The group of seven boys were standing at the side of a road in the village when they were approached by the man, said to be driving a dark car.
The boys are all in Year 6 and aged between ten and 11.
It happened on Tuesday morning as the boys made their way to school.
Mr Orr said: "They were on the way to school and were waiting for their friends when the car stopped and the driver wound the window down and asked them if they wanted a lift.
"They did absolutely the right thing and didn't get into the car but instead ran away and told an adult at school."
Pupils at the school were also warned about getting into a car with someone they know.
Mr Orr said the warning was inspired by the case of April Jones, who was said to be "happy and smiling" when she got into the car of Mark Bridger, the man accused of abducting and murdering her in Wales.
He said: "Other recent cases in the news have shown danger doesn't just come from strangers, so we told them they shouldn't accept a lift from anybody unless it has been arranged with their parents."
Police were called and searched the area. Officers later informed nearby schools about what had happened.
Letters have been sent to parents of children at Swanland Primary.
Pupils at the school were also given an assembly on "stranger danger".
In a letter to parents, headteacher Ray Woodward said: "We were informed by the police of an alleged incident at North Ferriby Primary School today when a bald man in a dark car stopped and asked a group of boys if they would like a lift.
"I am meeting with the children this afternoon to remind them of stranger danger and not to accept lifts from strangers.
"This may have been entirely innocent, but I would like you to be aware of this alleged incident so you may reinforce this message at home."
A spokesman for Humberside Police said the force was informed by staff at the school.
She said: "We sent some PCSOs to the area, who spoke to staff at the school, searched the area and spoke to people around where it happened.
"Enquiries are still ongoing."
Anyone with information should call Humberside Police on 101 or Crimestoppers anonymously on 0800 555111.
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