World News Update, what you need to know

Fifteen Palestinians are dead after an Israeli shell slammed into a UN-run school where hundreds of civilians had taken refuge, sending the death toll in Gaza soaring to 777, despite world efforts to broker a cease fire.

ELSEWHERE:

KIEV, Ukraine - Independent monitors helping Canberra negotiate with armed rebels over access to the MH17 crash site say Australians are already on the ground "sussing the security situation".

OUAGADOUGOU - The wreck of an Air Algerie plane that went missing with 116 people on board has been found in Mali near the Burkina Faso border.

KANO, Nigeria - At least one person has been killed and eight others are injured after a blast ripped through a crowded bus station in Kano, northern Nigeria.

WASHINGTON - The United States has evidence Russian troops are firing artillery from inside Russia on Ukrainian military positions, a US official says.