Men tried several times in recent weeks to watch, accost or lure children on Arlington streets, authorities said Tuesday.
The strangers did not harm the children, but Arlington police said they wanted to publicize the incidents. They said they are stepping up patrols in affected areas.
Strangers looking at children have been reported recently elsewhere in the Washington area.
In the latest Arlington incident, about 3:30 p.m. May 25, a vehicle slowed in the 1300 block of North Stafford Street and seemed to wait as a girl was walking there. She turned and went the other way.
Police said the girl reported seeing the vehicle two other times. Once the driver honked his horn to get her attention, and another time, he was parked and seemed to be watching her, police said.
He was described as heavy-set, possibly in his 50s with thinning black hair, big lips and small-rimmed sunglasses. He was in a newer-model blue or black sedan.
On May 23, a dark blue pickup truck drove beside two girls on North Park Drive, but the girls left when they joined a third person, police said.
On April 19, a man tried to lure children into a navy blue pickup in the 5200 block of North 30th Street, police said. On April 7, in the 5200 block of South Eighth Road, a man in a dark-colored pickup tried to get a boy and girl to go with him, but they refused.
The girl had seen him watching her at least two other times, police said. The man was said to be Hispanic, in his 30s, about 5 feet 6 inches and 160 pounds.