A man tried to drag a young girl into a van in Essex after telling her and a friend to get into the vehicle.
Police said the two victims, who were both aged under 10, were approached while on Mary Ruck Way at Black Notley near Braintree.
A red van pulled up alongside them at about 6.15pm on Tuesday, April 24.
The driver asked them to get in and then tried to drag one of the girls into the vehicle. They ran away and found help.
Police said they searched the area a short time later but could not find the van.
The victims said the man was in his 30s to 40s and wore a hooded jacket, a baseball cap and dark glasses. He had a tattoo of a skull and cross bones with a red slash across it on his right hand.
The van is thought to have had an unofficial Royal Mail logo on the side.