More than 120 pounds of suspected methamphetamine and 10 pounds of cocaine were seized from the trunk of a car in Butler County, federal authorities said.

The discovery Sunday on Interstate 79 was made during an ongoing narcotics trafficking investigation by the U.S. Drug Enforcement Administration.

“This is the largest seizure of methamphetamine in the history of Western Pennsylvania,” U.S. Attorney Scott W. Brady said in a news release. He estimated the drugs' combined street value at $2.5 million.

“We have disrupted a major narcotics trafficking organization,” Brady said.

Durell Anthony Jones, 33, of Fairmont, W.Va., was arrested and is charged with possession with intent to distribute methamphetamine and cocaine, and conspiracy to distribute those drugs.

He remains in federal custody at Allegheny County Jail.

DEA Task Force officers were conducting a surveillance operation in the area of I-79 and Route 422 in Muddy Creek Township about 5:30 a.m. when they noticed a car with a West Virginia license plate pull into the Pilot truck stop.

The driver, who was later identified as Jones, authorities said, stopped the car at the store to drop off a woman who was riding with him. He then drove to the back of the business.

Officers watched Jones drive up to a tractor-trailer with California license plates and stop.

“California is a source state for narcotics shipped to Western Pennsylvania,” according to an affidavit filed with the criminal complaint.

The defendant opened his trunk. But because of where the vehicles were parked, authorities said, the officers could not see exactly what happened.

Investigators, however, suspected that what occurred, the affidavit said, was “drug traffickers exchanging drugs.”

Jones eventually drove back to the front of the store, picked up his passenger and continued onto I-79 southbound.

The DEA officers notified state police and told them what they saw. They also noted that Jones' car appeared to have heavily tinted windows.

Troopers, in turn, pulled over the car, basing their stop on the window tint violation.

Police subsequently learned that Jones was wanted on a warrant out of Michigan. Additionally, according to the complaint, he has a criminal record in five states. His record includes a prior felony drug conviction.

During a “probable cause search” of the vehicle, DEA officers said, police found four duffel bags in the trunk.

The bags contained 122.36 pounds of suspected meth and a little more than 10 pounds of suspected cocaine.

Jones and his passenger were taken to the DEA office in Pittsburgh.

“(He) stated he was aware that there were drugs in the trunk of his vehicle,” the affidavit said, “and that he had obtained them from an unknown male in a truck, whom he met at (the Pilot truck stop).”

He claimed he did not know what kind of drugs were in his trunk. He told investigators that he was “paid a large sum of money to pick up these drugs and transport them to a person in Morgantown (W.Va),” the affidavit said.

Jones at a detention hearing this week was ordered held without bail.

He faces 10 years to life in federal prison, if convicted.