Typhoon Haiyan: Philippines aid efforts 'a pinprick'

Efforts to get aid to people on the ground in typhoon-hit parts of the Philippines have been hampered by logistical challenges and looting.

The BBC's Jonathan Head reports from Tacloban where he says people are desperately trying to escape, as soldiers try to control the lawlessness which has become prevalent on the streets.

The UN says more than 11 million people may have been affected and some 673,000 displaced by Typhoon Haiyan.