At least one civilian was killed and 15 soldiers injured on Monday by a car bomb targeting a military convoy in Bogota, the army said.

The blast, a week before President Alvaro Uribe is set to start his second term, was set off by remote control in a working class part of northwestern Bogota as military trucks passed by.

It shattered windows in dozens of buildings and killed a man who had been collecting recyclable garbage on the street.

Authorities said they suspected the attack was carried out by leftist rebels fighting a four-decade-old war against the state.

The capital city is on maximum alert ahead of Uribe's August 7 inauguration. Four years ago his first inauguration was marred by rebel missile attacks that killed 21 people and injured 60.

Uribe, whose father was killed by rebels in a botched kidnapping, is popular for his U.S.-backed crackdown on the guerrillas and won re-election in a 62-percent landslide in May.

He is credited with reducing crime, particularly in urban areas, and opening transportation routes long off limits due to guerrillas who fund themselves through cocaine smuggling and kidnapping for ransom. But many rural parts of the country remain under rebel control.

The southern jungle province of Caqueta was left without electricity on Monday after rebels bombed power installations, authorities said.