The world's oldest person has died at the age of 115 in Los Angeles.

Gertrude Baines was born in 1894 and gained a measure of fame when she voted for Barack Obama for US President.

She died peacefully in her sleep sometime between 6am and 7am (2pm and 3pm Irish time) at a Los Angeles area convalescent home.

A spokesman for the home said Ms Baines was a popular resident who had been the subject of considerable media attention on her last birthday.