SHOREVIEW, Minn. — Authorities said they have few answers about the motive behind a fatal shooting at an Interstate 94 rest stop early Wednesday that led to officers shooting and killing a suspect on Interstate 694, forcing about six miles of busy freeway to be closed for several hours.

Maple Grove police arrived about 1 a.m. at the Elm Creek rest stop in Maple Grove, a suburb northwest of Minneapolis, and found a man who had been fatally shot in an apparent homicide. Officers soon spotted a red SUV matching the description of the suspect's vehicle near where I-94, I-694 and I-494 split, the Hennepin County sheriff's office said.

With the aid of a State Patrol helicopter, they pursued the vehicle until it crashed into the cable barriers in the center median on I-694 in Shoreview, a suburb north of St. Paul. Authorities said the driver got out and was holding a weapon, prompting a Hennepin County sheriff's deputy and a Brooklyn Center police officer to open fire, killing the suspect.

The investigation is complex, Hennepin County Sheriff Rich Stanek said at a news conference. The Maple Grove Police Department is leading the investigation into the rest stop shooting, while the Minnesota Bureau of Criminal Apprehension was in charge of the investigation into the shooting of the suspect.

"We have more questions than answers at this point," Stanek said. "We want to get at what happened, why it happened and how it happened."

The suspect's vehicle had Oregon license plates, BCA assistant superintendent Drew Evans said.

Autopsies were planned on the two men, whose names weren't immediately released. The names of the two officers involved in the shooting will be released later in the week, officials said.

The closure of I-694 caused major snarls for commuters, but the Minnesota Department of Transportation said it reopened in both directions between Interstates 35W and 35E around 9:30 a.m.