CAMARILLO -- Authorities have identified the pilot of a single-engine plane who was killed attempting to tow an advertising banner when the aircraft crashed during takeoff from the Camarillo Airport.

An autopsy shows 53-year-old Marc Fiorini of Mesa, Ariz., died of multiple blunt-force injuries in the crash, according to Ventura County Senior Deputy Medical Examiner Craig Stevens.

Investigators say he was attempting to pick up an advertising banner around 9:30 a.m. Sunday when the Piper Super Cub nosed over at the end of the runway during takeoff.

Ventura County Fire Department Capt. Ron Oatman said the plane crashed on an unused section of runway.

Airport restaurant manager Sondra Phelps said she was looking out the window when she saw the banner collapse as the plane was taking off. Then she saw a large cloud of dust rise in the area.

It appears the banner "dragged it down," Phelps said. The plane "hit the field, by the looks of it."

Under FAA rules, planes towing banners are barred from carrying passengers. No one was injured on the ground.

The aircraft is owned by Van Wagner Aerial Media, which is based in Hollywood, Fla., according to the FAA.

Last month a banner-towing plane landed upside down at the airport, but the pilot avoided serious injury.