Extra troops deployed amid Chile earthquake unrest

Thousands of Chilean troops are heading to the country's devastated earthquake zone as reports emerge of desperate survivors turning to looting and arson.

President Michelle Bachelet said a total of 7,000 troops would soon be in place in areas around Concepcion, the city closest to the epicentre.

An air bridge has been set up between Santiago and Concepcion, with 100 tons of food aid due in the next few hours.


At least 723 people have been confirmed dead in the 8.8-magnitude quake.


Ms Bachelet said reinforcements would join the troops already in the provinces of Bio Bio and Maule, bringing the total to some 7,000.


Concepcion is under another night under curfew, which has been extended to be in force from 2000 (2300 GMT) until noon on Tuesday.


Reports are emerging from the city of residents clashing with police as they lay siege to shops and supermarkets in the search for food.