CARACAS, Venezuela (AP) -- Venezuela's foreign minister said the U.S. ambassador will be summoned to explain an alleged incursion by a U.S. military plane in Venezuelan airspace.

Venezuelan Defense Minister Gen. Gustavo Rangel Briceno said the U.S. Navy plane was detected in Venezuelan airspace Saturday near the Caribbean island of La Orchila and the plane was contacted by radio.

Foreign Minister Nicolas Maduro said U.S. Ambassador Patrick Duddy is being called in to explain.

U.S. Embassy spokeswoman Robin Holzhauer says the United States is looking into "any possible accidental incursion of Venezuelan airspace."

Venezuelan officials announced the move Monday at a news conference where they also expressed concern about an alleged incursion by Colombian troops.

Colombia's defense minister has denied Venezuela's allegation that troops crossed the border.