By Antoni Slodkowski
UNITED NATIONS, Nov 5 (Reuters) - An informal poll by the United Nations Security Council on Thursday showed former Costa Rican Vice President Rebeca Grynspan extended her lead as frontrunner in the race to become the 10th UN secretary-general, people close to the process said.
Grynspan got 12 votes in favor and three against on the 15-member council, marking her strongest showing in eight closed-door ballots conducted in recent months to replace Antonio Guterres as he finishes his second five-year term this year.
(Reporting by Antoni Slodkowski; Editing by Chris Reese)