A work action surfaced Friday at two California trucking terminals owned by YRC Worldwide Inc.

Overland Park-based YRC issued a statement that acknowledged the event at its Reddaway regional trucking operation. The statement cited "an unauthorized, non-sanctioned isolated work action with local Teamsters" at Reddaway's facilities in Fontana and Compton, Calif.

Word of a walkout and pickets surfaced on a Teamsters online forum, where members voiced support for the Fontana and Compton workers.

Officials of the International Brotherhood of Teamsters declined to comment late Friday.

The statement said Teamsters union officials had been in touch with the company and "voiced their opposition" to the work action in California. It further said the union officials "assured Reddaway they are working to put an immediate stop to it."

Reddaway said that it was redirecting freight traffic around the two terminals to other nearby facilities and that customers would see no effect.