SACRAMENTO, Calif. (AP) _ A small plane flipped over by a strong wind gust crashed and exploded into flames, killing all four people aboard, authorities said.

The single-engine Beechcraft Bonanza went down Tuesday night as it was taking off from Sacramento's Executive Airport, authorities said.

''All we know is that the plane was taking off, (and) it flipped over and a wing hit the ground,'' said Emanuel Bromberg, fire rescue chief at the airport.

A fire rescue officer who asked not to be identified said there was an immediate explosion when the plane hit the ground. ''Really, it was over in two minutes or less,'' he said.

Airport officials said winds gusting to 25 mph hit the airport, which is used by small planes and is about five miles south of the state Capitol.

The plane took off shortly after 6 p.m., said Art Grueneberger, air traffic manager at the airport. Winds had been ''fairly strong all day long,'' he said.

Police Capt. Sam Somers said the plane was owned by a Visalia construction company.

The coroner's office withheld the names of the victims pending notification of relatives, but Deputy Coroner Loren Willeford said the four men were all believed to be connected to the construction company. He identified the company as Kaweah Construction Co., which has an office in Sacramento.

The National Transportation Safety Board will investigate the crash, Grueneberger said.