Authorities at the Port of Long Beach are investigating a cargo container marked with graffiti saying "Anthrax a gift from Osama."

Long Beach Fire Battalion Chief Frank Hayes said a truck hauling the container was stopped at a terminal around 10:30 a.m. Wednesday because of the spray-painted graffiti.

The truck driver told authorities the container was picked up in nearby Wilmington and was empty.

The container was moved to an isolated area of the port for inspection and hazardous materials crews wearing oxygen tanks and protective suits have opened it.

Authorities say there are no evacuations and terminal operations are continuing.