The Associated Press

Worsening tensions in Ukraine and some weak showings from retailers are sending U.S. stocks lower for the first time this week.

Ukraine’s president said Russian forces have entered his country. He called an emergency meeting of his nation’s security council.

Several retailers fell after releasing results or outlooks that disappointed investors. Williams-Sonoma plunged 12 percent and Abercrombie & Fitch fell 5 percent.

The Dow Jones industrial average fell 42 points, or 0.3 percent, to 17,079 Thursday. The Dow is coming off three days of gains.

The Standard & Poor’s 500 index fell three points, or 0.2 percent, to 1,996.

The Nasdaq composite fell 11 points, or 0.3 percent, to 4,557.

Bond prices rose. The yield on the 10-year Treasury note fell to 2.34 percent.

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