Army warning: unrest pushing Egypt to brink

CAIRO, Egypt (Reuters) - Egypt's army chief said political strife was pushing the state to the brink of collapse - a stark warning from the institution that ran the country until last year as Cairo's first freely elected leader struggles to contain bloody street violence.

Abdel Fattah al-Sisi, a U.S.-trained general appointed by President Mohamed Mursi last year to head the armed forces, added in a statement on Tuesday that one of the primary goals of deploying troops in cities on the Suez Canal was to protect the waterway that is vital for Egypt's economy and world trade.