Police were seen at De Zavala Elementary School Tuesday afternoon in response to a telephone threat, but it was bogus, said Clint Bond, spokesman for Fort Worth schools.
The school is located on College Avenue in the city's hospital district.
Bond said "nothing materialized" and classes were released "as normal."
The fake call follows last week's mass slayings at a school in Connecticut.
Bond said schools all over "are just on edge" and there is plenty proof of that.
Tuesday morning, the sound of a car backfiring led to a one-hour lockdown at Birdville Elementary School. Although there was no gunman, some parents took their children home after the lockdown.
And earlier this week, security was heightened at Young Junior High and Miller Elementary schools in Arlington after a note containing an alleged threat to teachers and staff members was found over the weekend.
Other incidents were reported at Granbury and Lake Worth.
Bond cautioned against paying excessive attention to the hoaxes.
"The more it gets reported, the more it happens," he said.
-- Bill Miller
Diane Smith and Susan Schrock reported the articles linked above.