Dollar rises 3 percent vs Swiss franc

(Updates with dollar rise against Swiss franc)

NEW YORK, June 24 (Reuters) - The U.S. dollar rose more than 3 percent against the Swiss franc midway through the New York session on Wednesday as traders reported the Swiss National Bank was again intervening in the market.

The dollar rose as high as 1.1016 francs on electronic trading platform EBS, breaking the 1.1000 for the first time since May 21. It last traded at up 3.2 percent at 1.1011 CHF=EBS.

The euro was up 2.3 percent at 1.5380 francs on EBS. It climbed as high as 1.5381 EURCHF=EBS.

"It seems there was a second round from the SNB or BIS, though they probably won't confirm that," a trader said. "But it seems pretty clear from the muddy footprints in the market and the price action that they were intervening, not only in euro/swiss but also in dollar/swiss."

He called the SNB's decision to intervene when the market was focused on the Fed meeting and to do it twice in one day "a brilliant strategy." (Reporting by Nick Olivari and Steven C Johnson; Editing by James Dalgleish)