Frantic search for survivors after Dhaka building collapse

A frantic search for survivors is under way at a building outside the Bangladeshi capital, Dhaka, which collapsed, killing at least 147 people.

Rescue workers are working with volunteers, using heavy machinery and their bare hands to free survivors.

Tens of thousands of weeping family members are gathered at the site.

It is the latest in a series of incidents, raising questions about safety standards in the country's thriving clothing business, as Andrew North reports.