MADRID — Spanish authorities say three people died when a small airplane that was flying from Portugal crashed in northeastern Spain.

The regional government for Catalonia said Saturday that the plane had left from the Portuguese airport of Tires/Cascais.

Authorities say they haven't yet identified the three occupants or determined their nationalities.

A team of investigators are working to discover the cause of the accident.

The plane wreck caused a small brush fire that had to be extinguished by firefighters.