A single-engine airplane landed in the southbound lanes of Interstate 35 near Wyoming, Minn., in Chisago County late Friday, leading authorities to close down the highway in the area.

A preliminary investigation showed that the pilot sustained minor injuries but was OK, police confirmed. There did not appear to be any other injuries.

It was not known whether the plane crashed or made an emergency landing, according to a spokesman for the Minnesota State Patrol. Some fuel was leaking onto the road before the aircraft was removed around midnight.

The plane came down on the freeway near County Road 22 just after 10 p.m. All lanes in both directions of the interstate, which was especially busy Friday with holiday weekend travelers, were closed to traffic as police waited for officials with the Federal Aviation Administration to arrive.

Wyoming police initially notified motorists to avoid I-35 between the city and Stacy. One lane of northbound traffic reopened at 11:45 p.m., but all lanes were later opened.

Public records show the  plane was registered in 2007 to an Isanti man, now 79 years old.