World News Update, what you need to know

Hillary Clinton has launched her bid to become the first woman to win the White House, and announced a US campaign tour to showcase her support for "everyday Americans".

ELSEWHERE:

CAIRO - Two bomb attacks targeting security forces in Egypt's restive Sinai Peninsula have killed at least 14 people, officials say.

VATICAN CITY - Pope Francis has used the word "genocide" to describe the mass murder of Armenians 100 years ago, sparking fury from Turkey which has criticised the term as "far from historical reality".

BRASILIA - Tens of thousands of Brazilians have hit the streets, venting anger over government corruption and economic drift just one month after widespread protests drew more than a million people.

DUSSELDORF - A Germanwings passenger plane at the Cologne-Bonn international airport has been evacuated after police received a bomb threat against the flight, the airline says.

LONDON - Australian authorities insist the Gallipoli peninsula will be one of the safest places to be in Turkey in a fortnight's time despite reports the Anzac commemorations could be a high-value target for terrorists.

SAINT-DENIS DE LA REUNION - A 13-year-old boy has been killed by a shark who attacked him while he was surfing off the French Indian Ocean island of La Reunion.