Characterize the news's sentiment using the following options.
Options: positive, negative

U.S. indices continued lower amid ongoing concerns over Russia-Ukraine tensions, with investors and governments weighing the possibility of a Russian invasion of Ukraine. The Nasdaq composite traded lower by 1.23% to 13,548; The Invesco QQQ Trust Series 1 (NASDAQ:QQQ) lost 1.14% to $341.51
negative