'The CSF is making enquiries because the situation in Colombia is causing anxiety and everyone is waiting to see what happens next, but until now there are no changes with respect to the host nation,' said CSF spokesman Nestor Benitez.

'Ultimately, it is up to the Colombians, as a country, to sort out this situation. It is not just a footballing matter which involves its (the sport's) directors, but a matter for the government itself.'

Colombia is due to host the 12-team competition in July and its three biggest cities - Bogota, Medellin and Cali - are among the intended venues.

But the bombings, including one in a fashionable Medellin district which killed eight people and another in front of Bogota's National University which killed four, have thrown doubts over Colombia's suitability as a venue.

Earlier this month, the CSF confirmed Colombia would host the event following a thorough inspection of its facilities and, even on Monday, Benitez denied the possiblity of hosting the tournament in another country.

On Tuesday Benitez denied that Mexico, whose team have competed as guests at the Copa America since 1993, could step in for Colombia - just as it did 15 years ago when Colombia pulled out of hosting the 1986 World Cup.

'The Copa America is the pride of South American football,' said Benitez. 'It's a South American tournament and nothing indicates that it will be transferred outside the region.'

In Buenos Aires, where Colombia's team is preparing for Sunday's World Cup qualifier away to Argentina, the players were reluctant comment on the situation in their homeland.

'The organisation of the Copa America is a matter for the directors. The players are just waiting to see what will happen,' said striker Faustino Asprilla.

But he added: 'It will always be risky to organise an event of this size in my country because we are immersed in an enormous crisis, the likes of which we have never been through in Colombia.'