POCATELLO — Two Pocatello men were arrested Thursday night in what authorities are calling one of the largest heroin busts in Southeast Idaho history.

According to Idaho State Police, Miles A. Prescott, 27, and Daniel A.J. Shinney, 28, have each been charged with felony drug trafficking in heroin.

The suspects are each being held at the Bannock County Jail on a $150,000 bond, according to court records.

The Idaho State Police said Prescott and Shinney were arrested while traveling on Interstate 15 just south of Pocatello at approximately 11:45 p.m. Thursday.

Authorities said the suspects were in possession of 268.6 grams of heroin and other drug paraphernalia at the time of their arrest.

Police said the bust was one of the largest heroin seizures ever in Southeast Idaho.

The drug bust was the culmination of a heroin trafficking investigation by the Idaho State Police and the Drug Enforcement Administration, authorities said.

A preliminary hearing in the case has been scheduled for 10 a.m. on July 3 at the Bannock County Courthouse.

Prescott and Shinney could each be sentenced to 15 years to life in prison and fined up to $100,000 if convicted.