YRC Worldwide Inc.'s regional Reddaway less-than-truckload unit resumed normal operations on Monday after an unauthorized walkout by Teamsters at Southern California terminals in Fontana and Compton, the unit’s president said.

"The two terminals are fully operational now," T.J. O'Connor, president of Reddaway, told TT in an e-mail message, following the one-day action on Aug. 16.

The action wasn't sanctioned by the Teamsters Union, according to O'Connor's statement. The union didn't respond to requests for comment from TT.

The amount of freight affected by the walkout wasn't disclosed. The YRC regional unit official said that freight was rerouted around the affected terminals.

In the statement, Reddaway's O'Connor also said that an arbitration hearing that was scheduled before the walkout "will address related issues."

The company didn't say what the "related issues" were, but the statement noted that the union and the company had agreed to the arbitration process "long before" the walkout.

YRC is ranked No. 5 on the Transport Topics Top 100 listing of U.S. and Canadian for-hire carriers.