Venezuela's Chavez in 'most difficult hours' - Maduro
Venezuelan President Hugo Chavez is suffering from a new, severe respiratory infection following cancer surgery, the government has said.
Vice President Nicolas Maduro has addressed the nation and repeated Chavez's charge that the cancer was an "attack" by his enemies.
He said the country's leader was undergoing his "most difficult hours".
Mr Chavez, 58, returned to Venezuela last month after being treated for cancer in Cuba, but has not appeared in public since.
Correspondent Irene Caselli reports.
05 Mar 2013