European shares halt two-week rally; Yellen eyed
* FTSEurofirst 300 Up 0.04 pct, Euro STOXX 50 flat
* Euro STOXX 50 halted by 200-day moving average
* Investors await signals on U.S. rates from Jackson Hole
By Blaise Robinson
PARIS, Aug 22 (Reuters) - European shares were flat in early trading on Friday, taking a breather following a brisk two-week rally, with investors turning cautious ahead of a speech by U.S. Federal Reserve Chair Janet Yellen.
At 0730 GMT, the FTSEurofirst 300 index of top European shares was up 0.04 percent at 1,355.66 points, after gaining 2.3 percent in the past four sessions, set to record its biggest weekly gain in six months.
Yellen is due to speak later in the day at the annual gathering of central bankers in Jackson Hole, Wyoming. Investors will be looking for any fresh signals about the timing of U.S. interest rate increases.
Minutes from the Fed's July meeting on Wednesday showed policymakers debated whether interest rates should be raised earlier given a surprisingly strong job market recovery.
The FTSEurofirst 300 has risen 4.5 percent since a low hit two weeks ago, regaining ground following a sell-off triggered in June by worries over the crisis in Ukraine. Continuación...