US STOCKS-Fighting in Ukraine, Gaza sends Wall Street lower
* Yum Brands down on China food safety, McDonald's slips
* EMC jumps on report of activist investor stake
* Indexes down: Dow 0.44 pct, S&P 0.44 pct, Nasdaq 0.44 pct (Updates prices, adds Allergan, Obama statement on Ukraine)
By Rodrigo Campos
NEW YORK, July 21 (Reuters) - U.S. stocks fell on Monday, following the sharpest moves in indexes in the past three months during the two previous sessions, as developments in Ukraine and Gaza continue to garner investor focus.
Israeli jets, tanks and artillery pounded Gaza again as the death toll from a two-week conflict topped 500 amid growing international calls for a ceasefire. Fighters from Hamas, which controls Gaza, have repeatedly tried to infiltrate Israel over the past week through hidden tunnels.
Fighting flared in the Ukrainian city of Donetsk as investigators began to inspect the bodies of victims of a Malaysia Airlines jet shot down last week. The United States and its allies have pointed the finger at pro-Russian rebels and at Moscow itself over the downing of the plane with 298 people aboard. Russia has denied involvement and blamed the Ukrainian military.
The United States and the EU last week announced further economic sanctions against Russian interests before the jet was shot down, and sanctions could become even more stringent. However, the effect on the U.S. or the global economy continues to be seen as limited.
The situations in Gaza and Ukraine "are both quite serious, but at this point unlikely to derail the U.S. economy," said Rick Meckler, president of LibertyView Capital Management in Jersey City, New Jersey. Continuación...