UN chief race remains deadlocked as latest poll shows no candidate has support of all five veto powers

The sixth secret ballot in the race to replace UN Secretary-General António Guterres has left the contest unresolved, with every one of the seven candidates drawing at least two opposing votes from the five permanent Security Council members. Rebeca Grynspan, the 70-year-old former Costa Rican vice president, remains the narrow frontrunner after receiving nine votes in favour but two discouraging votes from permanent members. The council has fewer than three months to agree a successor before Guterres steps down on 31 December.

Friday's poll used colour-coded ballots for the first time, revealing which veto power opposes which candidate.

Grynspan would become the first Jewish secretary-general in the UN's 80-year history if she secures the role.

Her parents fled Poland in 1936 fearing Nazi expansion; relatives who stayed behind were killed in the Holocaust.