One child was killed and five others injured when leftist FARC rebels detonated a motorcycle bomb in the southwestern province of Cauca, Colombian authorities said.

The injured youngsters were taken to hospitals in Popayan, the provincial capital.

The blast took place in El Plateado, a hamlet within the municipality of Argelia, whose mayor, Elio Andrade, told El Tiempo newspaper that one of the wounded kids was in serious condition.

Before the explosion, a helicopter experiencing mechanical problems made an emergency landing on a soccer field in El Plateado and the aircraft's two occupants were grabbed by the guerrillas, the mayor said.

Argelia was the scene last week of a FARC attack that left seven police injured.

Several other communities in Cauca have also been targeted within the last week by units of the Revolutionary Armed Forces of Colombia, or FARC, the Andean nation's largest insurgency.

On Monday, hundreds of indigenous people arrived in Toribio, Cauca, to demand that both the rebels and the security forces cease hostilities and allow residents of the area's score of Indian communities to live in peace.

The spate of attacks in Cauca led President Juan Manuel Santos to schedule a Cabinet meeting Wednesday in Toribio.

The Indians hope to present to Santos "a proposal for demilitarization," the spokesman of the Association of Indigenous Governments of Northern Cauca, Feliciano Valencia, told Efe. EFE