Parents are being urged to be "vigilant" after two men attempted to "abduct children" outside of a school on Halloween.
On Tuesday, young people were reportedly targeted near a school in Clapham Common, South London.
An email was sent to parents at Eaton House Schools to inform them of the horrors which unfolded the night before.
Principle Sarah Segrave said: “It has come to our attention that there was an attempted abduction of children last night by two men driving a dark grey van.
An email was sent to parents at Eaton House Schools to inform them of the horrors which unfolded the night before
PA"Be vigilant and report any concerning situations to the police immediately”.
The incident reportedly took place at around 7.30pm near the junction of Nansen Road and Forthbridge Road.
Segrave added that parents should consider whether they want their children walking home alone in the dark.
Eaton House The Manor, opposite Clapham Common, includes a school for boys aged between two and 13 and one for girls aged between two and 11.
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A Metropolitan Police spokesperson said: "We are aware of online reports relating to a suspicious incident on Tuesday, 31 October.
"When two men were seen in the area of Nansen Road and Forthbridge Road, Clapham, trying to offer sweets to children who were out 'trick or treating'.
"These concerns were reported to the police on the day and an officer attended the scene.
"An investigation into this matter has been launched led by South West BCU CID and enquiries are ongoing."
Chief Inspector David Lee said: "We understand that these reports must be very distressing for parents and members of the local community.
“Trick or treating should be a fun activity and the fact that children were targeted whilst they were out enjoying themselves is very concerning.
“I would like to reassure the community that we are looking into this matter and officers are working hard to find the two men concerned."
