MADRID, March 30, 2008 (AFP) - Police in Spain's northern Basque Country Sunday found fragments from two small explosions near a telecommunications antenna after a telephone warning by the separatist group ETA, local authorities said.

The blasts caused no damage or injuries, a spokesman for the Basque interior ministry said, who said the antenna was located near the Basque towns of Azpeitia and Azkoitia.

Police experts had gone to the site after a telephone warning in the name of ETA at around 11 am (0900 GMT).

'It is probable that the devices went off at around 11 am as the officers who went there heard no explosion,' he said.

ETA is blamed for 822 deaths in its 40-year campaign for an independent Basque nation in parts of northern Spain and southwestern France.

Since calling off a 15-month-old ceasefire last June it has staged a number of attacks.

On March 7, suspected ETA gunmen killed a former Socialist councillor in the Basque region, two days before general elections.