World News Update, what you need to know

An Australian man working with an oil and gas drilling company in the Israeli-occupied Golan Heights has been killed in a workplace accident.

ELSWHERE:

ROME - At least 700 migrants may have died at sea this past week in the busiest week of migrant crossings from Libya towards Italy this year, Medecins San Frontieres and the UN Refugee agency say.

CINCINNATI, Ohio - Panicked zoo visitors watched helplessly and shouted, "Stay calm!" while one woman yelled, "Mommy loves you!" as a 180kg-plus gorilla loomed over a four-year-old boy who had fallen into a shallow moat at the Cincinnati Zoo.

DUBAI - Iran's Haj and Pilgrimage Organisation says the country's pilgrims will not attend the annual Muslim haj pilgrimage, blaming regional rival Saudi Arabia for "sabotage" and failing to guarantee the safety of pilgrims.

AMMAN - The chief peace negotiator of Syria's mainstream opposition says he is resigning over the failure of the UN-backed Geneva peace talks to bring a political settlement and to ease the plight of Syrians living in besieged rebel-held areas.

WASHINGTON - In a move to bolster support among war veterans, Republican Donald Trump has joined a leather-jacket-wearing, motorcycle-riding crowd in Washington to honour fighters who served in foreign wars and advocate for those still missing in action.