LYMAN, Maine — Two people were injured Saturday morning when a home-built plane crashed into trees in Lyman.

The two people on board reportedly suffered minor injuries in the crash and were taken to Southern Maine Medical Center in Biddeford for treatment, according to Federal Aviation Administration spokesman Jim Peters.

He said the ultralight aircraft had taken off from Eliot and was heading to Wiscasset when it developed engine trouble. The pilot was diverting to Sanford when the plane crashed, sustaining substantial damage, he said.

Peters did not identify the people on board and efforts to contact York County officials Saturday were unsuccessful.

The National Transportation Safety Board will conduct the investigation.