LOS ANGELES (AP) -- U.S. Secretary of Labor Thomas Perez says dockworkers will return to West Coast ports Saturday evening.

In an interview with The Associated Press, Perez said that both the dockworkers' union and their employers agreed to resume weekend work now that they have reached a new contract.

The two sides reached the contract Friday night after nine months of negotiations.

In recent weeks, employers cut most weekend work, saying they would not pay extra wages.

Cargo has backed up in a historically bad crisis of cargo congestion at the 29 ports.

Perez says: "I suspect that people will be getting a lot of overtime in the days ahead."

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