A 64-year-old Issaquah man died Thursday in a head-on collision on Interstate 5 in Conway in Skagit County.

The victim, Joseph Gibbons, was identified by Washington State Patrol Friday morning after the agency notified next of kin.

Gibbons was traveling north on the highway when a southbound sedan driven by a 19-year-old woman crossed into the opposing lanes and crashed into his vehicle head on, Trooper Mark Francis said.

State troopers found Gibbon dead at the scene of the accident. Two additional vehicles were involved in the collision, sending Sarah Ney, 42, of Oak Harbor and 23-year-old Tukwila man Truc Nguyen to Skagit Valley Hospital with minor injuries.

“According to [the 19-year-old] she had a little black dog running around on the seats and that caused the crash,” Francis said. “It’s also a possibility drugs were involved. … There was some paraphernalia and a pipe in the car.”

The woman was booked into Skagit County Jail Thursday night and troopers obtained a warrant for a blood sample for toxicology tests.

She has not been charged with a crime, but troopers are investigating the case as a possible vehicular homicide, Francis said.