Police plan to use parked patrol cars and heavy, water-filled barricades at key crossings along the 5.5-mile Tournament of Roses parade route in response to recent terrorist attacks that used trucks as weapons.

In announcing the new security measures on Wednesday, Pasadena Police Chief Phillip L. Sanchez stressed there was no known threat to the parade, the Rose Bowl Game or the city of Pasadena. But he said the changes were made in an abundance of caution, adding that parade security is frequently tweaked as terrorism tactics and threats evolve.

Read more: Los Angeles Times