World News Update, what you need to know

US police are searching for two shooters and a motive after a backyard party ambush near Pittsburgh killed at least five people and injured three others.

ELSEWHERE:

JOHANNESBURG - A South African court has found a 51-year-old woman guilty of kidnapping a newborn baby from a Cape Town maternity hospital 19 years ago, in a case which has gripped the country.

LONDON - So-called "good" cholesterol may actually increase heart attack risks in some people, researchers have found, in a discovery that casts fresh doubt on drugs designed to raise it.

PALATKA, Florida - Sheriff's investigators in north Florida are trying to determine how a four-year-old boy got his hands on the gun he used to shoot his mother as she drove a pickup truck.

VATICAN CITY - Pope Francis has made key changes to the complex and often opaque financial procedures involved in the making of Roman Catholic saints.

LONDON - Racket manufacturer Head intends to extend its contract with five-time grand slam champion Maria Sharapova despite her failing a drug test at this year's Australian Open.

BANGKOK - Malaysia has received the piece of debris found on a sandbank off Mozambique which will be analysed to determine if it belongs to the Malaysia Airlines aircraft that went missing with 239 people on board on March 8, 2014.