A medical helicopter crashed and burned after striking a high-voltage line in rain and fog, killing the pilot and two nurses, authorities said.

The Flight for Life helicopter, leased by Mother Francis Hospital of Tyler, was en route to Pittsburg Medical Center to pick up a patient for transfer when it crashed Monday night, said Stacy Gill, communications operator for the Texas Department of Public Safety.The wreckage was scattered over several acres in a wooded area about three miles north of Tyler in East Texas, she said.

The pilot was identified as Gerald A. Morgan Sr., 46, of Houston, said hospital spokeswoman Beverly Mason. The registered nurses were identified as Jeanne Lackey, 29, of Lindale, and Kathy Ohnheiser, 31, of Haltom City.

The helicopter left the Tyler hospital at 10:14 p.m. and notified authorities four minutes later that it was returning because of bad weather, Gill said. There was rain and fog in the area. At 10:23 p.m., a Smith County resident telephoned authorities to notify them of a fire and they discovered the crash.