Portland, Ore. – Arson investigators have determined that illegal fireworks were the cause of an apartment fire in Southeast Portland. Fire fighters arrived to the Briarwood East apartments near 122nd and Powell yesterday after getting multiple calls reporting heavy smoke. One person received minor injuries and was evaluated by Portland Fire. Investigators say the fire was caused by a juvenile lighting off illegal fireworks. Terry Foster with Portland Fire says they aren’t says what charges the juvenile may face, but he says action is being taken.