Tensions continue to run high in Venezuela

Police said both blasts happened in the small hours of the morning local time (around 0630 GMT) and caused some damage.

A Reuters reporter heard the explosion at an office of the Spanish embassy in the east of the capital.

"It punched a hole in the wall surrounding the building," he said.

Local authorities said at least three people, including a security guard, were injured by shattered glass.

It was not clear what had caused the explosions.

Arrest

Tension has been rising again in Venezuela following the arrest last week of one of the leaders of long-running protests against Venezuela's President Hugo Chavez.

Carlos Fernandez, who is now under house arrest, has been accused of treason and civil rebellion.

Chavez: 'Don't meddle in our affairs'

His arrest provoked protests in Venezuela and international concern.

In his weekly broadcast on Sunday, Hello President, Mr Chavez told the world community to stop interfering in Venezuelan affairs.

Speaking to the governments of Colombia, Spain and the United States among others, Mr Chavez said: "We don't meddle in your affairs; please don't meddle in ours."

He warned Cesar Gaviria, chief mediator in fractious talks aiming to end the country's recent strike - and former Colombian president - not to step "out of line".

"This is a sovereign nation," he said.

Globovision Television - a local media outlet which has clashed with Mr Chavez over what he alleges is its bias against him - reported an official as saying leaflets had been discovered near the Spanish embassy building.