An Idaho man has been arrested and accused of attempting to kidnap his daughter's boyfriend because he didn't like the couple dating.

Paul David Thomas, 49, has been charged with felony kidnapping and aggravated assault. He was being held in the Ada County jail on $20,000 bond. He could face up to 25 years in prison if convicted on the kidnapping charge.

Sheriff's investigators say Thomas allegedly grabbed the 18-year-old boyfriend in front of Eagle High School west of Boise during the school's lunch hour Wednesday and forced the young man, whose name was not released, into his van. The teen told detectives Thomas indicated he had a knife and made unspecified threats of violence because of his persistence in pursuing a relationship with Thomas' daughter.

"It looks like his daughter and the victim had a relationship that the father disapproved of," Capt. Ron Freeman of the Ada County sheriffs office told the Idaho Press-Tribune newspaper. "He really felt he was in grave danger when he was thrown into the vehicle by Mr. Thomas."

According to police, the teenager escaped from the van when Thomas stopped at an intersection. The teen ran across a field and jumped into another car occupied by some classmates. Thomas allegedly chased that vehicle in his van until it stopped and the boyfriend fled on foot. The teen summoned police by using a cell phone he borrowed from the driver of the other vehicle and Thomas was arrested at the scene.