City-sized iceberg drifting away from Antarctica

A huge iceberg, estimated to be the size of Manhattan, is moving away from Antarctica and towards the open ocean where it could pose a threat to international shipping lanes.

The iceberg, which is approximately 270 square miles in size, broke away from the Pine Island Glacier in July but was iced-in due to freezing Arctic temperatures.

Aided by strong winds, the massive block could move eastwards along the Antarctic coast or drift into the South Atlantic Ocean - potentially causing a hazard to ships.