PORTLAND, Aug 4 (Reuters) - A small plane crashed into a vacation home on the Oregon coast on Monday, killing at least four people, including two children inside, officials said.

Authorities were searching for a third child in the smoldering wreckage of the house in the popular vacation town of Gearhart, according to City Administrator Dennis McNally.

McNally said he did not know the victims' ages.

The bodies of the two adults in the single-engine plane had not been recovered, but an adult and two other children were hospitalized with injuries, he said.

The plane crash in early morning fog was followed by an explosion that also severely damaged the house next door.

The plane was rented from Aviation Adventures, a company in nearby Seaside Oregon. (Reporting by Teresa Carson; Editing by Doina Chiacu)

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