Venezuela crisis: Military 'blocks aid corridor'

Venezuelan soldiers have blocked a bridge on the border with Colombia ahead of a shipment of humanitarian aid, the opposition says.
The aid is being arranged by opposition leader Juan Guaidó, who declared himself interim president last month.
But it is not clear how the aid will be distributed.
President Nicolás Maduro, who has the support of the army, has rejected letting it into the country.
Venezuela is in the grip of a worsening humanitarian crisis.
Mr Guaidó is head of Venezuela’s National Assembly and says the constitution allows him to assume power temporarily when the president is deemed illegitimate.
He has secured the backing of over 40 countries, including the US and most Latin American and European nations. Mr Maduro still has the support of China and Russia.