US STOCKS-U.S. stocks fall as China slump spurs global growth worries
* China stock sell-off raises fears of economic slowdown
* EU summit meet on Sunday to decide Greece's fate
* United Airlines fall after computer glitch halts flights
* Tesla drops after second rating cut in two days
* Indexes down: Dow 0.97 pct, S&P 1 pct, Nasdaq 1.16 pct (Adds details, changes comment, updates prices)
By Tanya Agrawal
July 8 (Reuters) - U.S. stocks fell more than 1 percent on Wednesday, pushing the bluechip Dow Jones Industrial average back into negative territory for the year, as the slide in Chinese markets spurred concerns over its impact on global economic growth.
The decline in U.S. stocks pushed the Nasdaq Composite index to its lowest level in two months and the S&P 500 index to its lowest level in over four months. Concerns over China and Greece had pushed the Dow into negative territory briefly on Tuesday.
Beijing unveiled yet another battery of measures to arrest the sell-off in shares and the securities regulator warned of "panic sentiment" gripping investors in the world's second-largest economy. Continuación...