(BBC News) ARGENTINE police have clashed with hundreds of people trying to loot a supermarket near Buenos Aires.

The incident took place in broad day light outside a Carrefour supermarket in San Fernando, in the outskirts of the capital.
Riot police used tear gas and managed to stop the attack. But in other parts of the country, supermarkets and shops have been looted.
The government says trade unions linked to the opposition are to blame.
“This has been orchestrated. Someone has started all this to create an atmosphere of fear,” said San Fernando mayor Luis Andreotti.
Argentine television showed images of people – many of them with their faces covered – throwing stones at the police and trying to break into shops and supermarkets.
The first looting incidents happened on Thursday in the southern resort city of Bariloche.
At least three supermarkets were looted there by more than 100 people, who left with electronics, toys, clothes and food.
Following a request from the provincial governor, the central government sent some 400 federal troops to Bariloche, in Santa Fe province.
Other attacks were registered overnight in the industrial cities of Campana and Zarate, in Buenos Aires province; Resistencia, in the north; and in Argentina’s third city, Rosario.
Two people were killed in Rosario as security guards tried to stop the looting.
At least 117 people were detained in Buenos Aires province and 128 in Santa Fe province, the authorities say.
Memories of the 2001 looting and riots, during latest economic crisis, are still fresh in the South American country.
But the government of Cristina Fernandez de Kirchner accuses organised groups, linked to the opposition and the “right-wing media”, of trying to undermine its social reform programme.
“There is a part of Argentina that wants to drive the country into chaos and violence,” deputy Security Minister Sergio Berni said in Bariloche.
“But this Argentina is not the same of 2001,” he added.
Buenos Aires province governor Daniel Scioli also says the disruption is politically motivated.
“People who are leaving looted shops with plasma TVs are not hungry,” said Scioli.
Opposition union leader Hugo Moyano dismissed the government’s accusations.
“This is probably triggered by the difficult situation the people of Argentina are facing. I cannot imagine that this has been organised by someone,” said Mr Moyano, head of the powerful CGT union.