On Sunday, guerrillas bombed two rail bridges from the Andes, cutting off some of Peru's largest copper mines from coastal ports.

Some say the guerrillas bombed their way to the negotiating table.

On 18 February, left-wing guerrillas bombed a crowded bus in Buenos Aires and several civilians suffered severe burns in the attack.

On 26 March, left-wing guerrillas bombed the ground floor of the Sheraton hotel in Buenos Aires, wounding a Spanish tourist and six hotel employees.

Some 20 years ago, pro-British guerrillas bombed the same site.

Colombian guerrillas, for example, have repeatedly bombed oil pipelines in that country but their most recent attacks have shut the lines for only a few days at a time.

Last year, guerrillas bombed Colombia's principal oil exporting pipeline 39 times.

In a second reported incident, the official radio said guerrillas bombed the city of Jalalabad, 70 miles east of Kabul, killing 20 people and wounding 32.

The guerrillas also bombed at least half a dozen Peruvian banks and a gasoline depot in downtown Lima, police said.

Killing 5 people and wounding 50, the guerrillas bombed seven banks and briefly knocked out Lima's electricity on Christmas day and New Year's Eve.