World News Update, What you need to know

Protesters have linked hands near the violent heart of the Paris terror attacks, giving an emotional jolt to world leaders flying into the French capital to try to save Earth from a climate catastrophe.

WASHINGTON - People who knew the suspected gunman in the Colorado Springs shooting have described him as a loner who was "weird" but had given few signs of violent behaviour.

RIYADH - Hundreds of Saudi women have began campaigning for public office, in a first for women in the conservative Muslim kingdom, even as three activists were disqualified.

PARIS - Prime Minister Malcolm Turnbull has paid respects to the 130 victims of the Paris terrorist attacks, laying a wreath with his New Zealand counterpart John Key in the French capital.

BEIRUT - The Islamic State group has executed more than 3500 people in Syria, including nearly 2000 civilians, since declaring its "caliphate" in June last year, a monitor says.

BANGUI - Protected by the heaviest security ever seen on his trips, Pope Francis has preached reconciliation in the divided Central African Republic, a nation racked by bloodshed between Muslims and Christians.

LONDON - Laughing while sat with her cuddly toy dog, Princess Charlotte looks pretty in pink in pictures released to mark her six-month milestone.

NEW YORK - Pop singer Adele's latest album, 25, has sold a record 3.38 million copies in its first week on the US market, Nielsen Music reported.