LAREDO -- Two propane-delivery trucks that were stolen from a San Antonio gas company over the weekend were found today in South Texas, police said.

The trucks were found on Highway 359 two miles east of Laredo, San Antonio police spokeswoman Sandy Gutierrez said. She did not know whether the trucks were still carrying the explosive fuel when they were found.

A spokesman with the FBI in Laredo did not immediately return a telephone call seeking comment and no one from the Webb County Sheriff's Department was available to speak with The Associated Press.

The theft had raised fears of what could happen if terrorists got hold of the propane.

Police Chief Albert Ortiz said Tuesday that his department did not suspect terrorism in the thefts, but officials said that since Sept. 11 such a possibility cannot be ignored.

"Four years ago, we probably would not be too concerned about this, San Antonio FBI agent Patrick Patterson said today on NBC's Today. "It would be a major theft and handled like any other criminal investigation. Because of the nature of the day, we are very, very concerned about the whereabouts of these two trucks."

One of the tankers carried about 3,000 gallons of propane, while the other held 2,600 gallons, police said.

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